Pages

Showing posts with label pinhole. Show all posts
Showing posts with label pinhole. Show all posts

Sunday 19 December 2021

Zero pinhole camera


Pinhole cameras have been with us for a long time in all sorts of shapes and sizes. Aristotle wrote about this naturally occurring in the fourth century. It was not until the 1850 s when the Scottish scientist Sir David Brewster used a pinhole camera to produce the first photograph. It has taken on many forms ever since!

Over recent years the pinhole camera has come to the fore as a desired method of producing a different style of photograph. This popularity has been helped by the zero image company, making some wonderfully crafted boxes for the pinhole photographer. They are not just great looking collectibles but are fully working cameras that take some excellent photographs. They come in the three main formats of 35 millimetres, 120 medium format and 5 x 4 large format.

This camera has not been an easy acquisition for me, with several false starts I have had to compromise to get a deluxe model but it is in my format of choice if not the camera I really wanted for the project. Having said that I am not disappointed with the multi format camera. On hindsight this could be a good thing, as it allows me to play with the different sizes that make up the 120 family at a later date.

So whats in the box apart from a well crafted wooden camera that some quarters think would make a good jewelry box. Thinking about it, I can see what they mean with the multi format version!

  • A plastic view finder marked out in the different 120 formats.
  • A very nicely presented instruction manual that needs to be read if you are serious about getting the most from your camera.
  • A grey cord? Not sure why this in the box.
  • A certificate telling you who hand crafted your camera.

There are some other bits of kit you need to gather before you stroll down the road with your camera.

  • You will not get far without a spare spool to wind the film on to.
  • A light meter unless you are going to use sun rule 16.
  • A cable release is a good idea if you have the deluxe version as it removes any chance of camera shake.
  • Tripod.
  • A note-book and pencil is a good idea for recording frame numbers and exposure times. That then can be checked against the negatives once they have been developed. Giving you an indication as to whether you are over or under exposing.

Tuesday 16 February 2021

Zero double take project first results.


Zero 6x9 pinhole camera.


As I sit here reviewing the first batch of photographs from double take, the wind and the rain is still lashing the property - something it has been doing for the last twenty four hours. I'm pleased to be inside in front of a warm fire with Tabatino who is stretched out in front of it like a rug. 


Zero 6x9 pinhole camera.
 






The contact print shows that the second exposures are quite weak and will require dodging and burning to make their presence felt. With this in mind I  have been using half page test strips  so I can see how much more exposure is needed to bring out the weaker parts of the negative. This has given me a better overall idea of how much extra time the weaker parts of the picture need so I can get as close as possible to what the final print will look like. Having  chosen to use 6x6 negatives I find myself cropping them to a landscape frame size giving me more choice over which parts of the negative make the final composition and partly to get the best use out of the paper size. I'm using Silverprint's gloss proof paper mainly because I believe it has added something to the overall expression of the photographs.


Zero 6 x 9 pinhole camera.



The results of this first film have been a pleasant surprise in that most of the negatives have produced picture combinations that work well. Whether this is down to luck or the pre-planning in the picture combinations only time will tell. The day I took the pictures was a challenge in that it was windy with a broken cloud sky that was fast moving making metering each shot difficult. By the time I had worked out the shutter speed and opened it the scene in some cases had gone from bright sunshine to dull and overcast or vice versa. It just goes to show how forgiving film is when it comes to exposing it in rapidly changing light conditions over extended periods. These were printed at grade 3 and not my more common split procedure.


Technical data: 

Film 120 FP4+ set to 6 x 6 negative size, developed in PMK Pyro, Printed on silverproof paper, developed in Ilford warmtone developer.

Monday 15 February 2021

Reciprocity How it may affect monochrome film



The use of a Zero pinhole camera means that long exposures are the norm.
It might be a good idea to give an insight into how reciprocity affects the negatives. It is a wide-ranging subject that afflicts colour and black and white materials in different ways at long exposures, extremely short exposures and with flash. Because of this I am limiting this post to long exposure times with black and white film.

The Law:

The formula E=IxT expresses reciprocal relationship between the intensity of light reaching the film and the time allowed to act on the film. If one increases the other decreases proportionally, no net change in exposure occurs.

Ansel Adams The Negative.

At long exposures this law breaks down, known as reciprocity failure. It is where a seconds worth of light is not enough to satisfactorily produce the required densities in the negative. So the longer the exposure the greater the compensation needs to be. With these exaggerated times comes a side effect in that the lower values recorded become under exposed more than the higher ones causing the contrast of the negative to increase. You can make adjustment for this when developing the film by a reduction of ten percent for up to ten seconds, from ten seconds by twenty percent and from a hundred seconds by thirty percent. These changes are easy to control for single frame exposure made with large format cameras but a little difficult to achieve with roll film. If all the frames on the film are exposed for no longer than ten seconds then the ten percent reduction will control the increase in contrast across the whole film, but in practice this is not always the case with exposure times being all over the place. I would suggest that a reduction of ten percent be the starting point and that with experimentation will find what works best for you. Having said all this the side effect of higher contrast maybe to your liking in which case where's the problem.





The picture included in this post shows a slight increase in contrast. The negatives Ilford FP4+ were processed in PMK Pyro without an adjustment for increased contrast. Printed on grade two multi grade paper developed using Moersch 6 blue.


The following images and those above were all made using a Zero multi format Pinhole camera. The pictures below are from negatives using Fomapan 100 at box speed developed in studional for 11 minutes. scanned from photographs printed on Ilford multigrade 4 developed in souped ilford multigrade. 









Sunday 9 September 2018

Delta 100 and the lens-less camera


This is not the first time I have mentioned sharpness when it comes to pinhole photography. I know! not something you associate with the dream like quality of the images it produces. It is part of the reason that draws me to using a pinhole camera but it does not stop me speculating whether a T grain film would enhance the detail and therefore increase the sharpness.


I have already informally checked out the idea that Rodinal/RO9 could go some way to increasing sharpness which was done some time ago. (if your interested in that article I'll post a link at the end) The results did confirm that there was something in my observations. I will reiterate that the sharpness increase will not rival that of a lensed camera.


Delta 100 @100iso developed in RO9
 I did find that PMK Pyro developed negatives, when printed looked softer to the pictures produced from negatives processed in Rodinal/RO9 in a very subtle way. This then lead me on to thinking would T grain film with it's enhanced sharpness show a difference when used with a pinhole camera. Better still would it get a double boost when combined with Rodinal/RO9 developer?

 
Contact print on Fotospeed RCVC
So is there a difference? Yes a  noticeable one it has surprised me the level of increase. I'm not sure how much is down to the film alone because the film was developed in Rodinal/RO9. I suspect that most of it is from the films T grain and the developer has just enhanced the equation. 


What do I mean by an increase of sharpness - it shows it's self with a better defining of the details across all areas but still maintains that softness you expect from lens-less images. 



All the above were printed on Fotospeed RCVC paper developed in Ilford multigrade 

Link to older post on sharpness

Wednesday 31 January 2018

Welcome to the new Year.

What a great start to the New Year for some with all that snow turning the landscape into a photographs paradise! Unfortunately, this part of the country is in the middle of a monsoon, in fact we have had that much rain I'm surprised we have not floated off into the North sea! Dull, dark and uninspiring, I am pleased to have a darkroom when the weather is like this.


A bit late I know, Welcome New Year! I had told some of my regulars that I would be posting a number of articles over the Christmas period. It did not happen and you have my apologies. December was so busy and passed by so quickly I feel I have lost a month from last year.


In case you did not know, this blog has always been a collaboration - so I need to say a big thank you to the editor for keeping it legible and concise. With that in mind we are looking for contributors and it does not matter if you blog or not. Maybe you have had an inkling to blog but do not want the hassle of doing the whole thing yourself or you would like to try it out before you get stuck in. Needless to say it should be photograph related. If you would like to contribute your thoughts and pictures please do. We have no set length, a few hundred words will do but definitely no more than a 1000. You will get full credit and links to your web site, blog if you have them.

 As you will have noticed I have refreshed the header for the new year. Something that has become a bit of a tradition. We may refresh the whole site in line with our mobile offering. Along with other subtle changes when we get the time.

I am not one for New Years resolutions it is just something I don't do. But I am going to try and use my Multi format pinhole camera even more than last year now that I have found a film, developer combination that gives the images a certain style that I like. I'm just not sure which of the 120 format family to use or what paper to print them on. I have some ideas as to what I will make pictures of and already know some of them will be double exposures whether I like it or not.


All I need to do now is thank you all for reading the articles from the year just passed and wish you all the best for the Year ahead. Keep well and creative.

Accompanying images:

Were all made using 35 mm Kodak  gold colour negative. A number of different cameras were used I know one of them was a Nikon FM. Locations of the images are not remembered apart from the first one which is Yosemite valley looking towards the falls.

Friday 10 November 2017

Many formats in one camera Zero 6 x 9 pinhole.

Zero 120 multi format pinhole camera
I've had my Zero 6 x 9 second edition multi format camera for years  I don't use it as much as I should this is because it comes into conflict with my Bronica SQAi which I really love using. I enjoy using the Zero but have found that it is spending a lot of time in my camera bag. This shouldn't be the case as they both have completely different characters. Since the beginning of the year I determined that I would use my pinhole camera more. I have been true to my word in that I have set time aside, it maybe the simplest way of making images, it also happens to take time to set up and expose the film. Not always conducive for the way I go about making images. The strange thing is I need a certain frame of mind when I want to use it. 

How the different negative
sizes look.
Being multi format I thought it was time to see how the other formats come out. I know after all these years it will be the first time I explore the formats ether side of my favored 6x6 negative size. So what are the other sizes, down stream is 6 x 4.5 I had not realised until I had moved the partitions to this position that with the camera horizontal it produced the frames in portrait format and that if you wanted landscape I had to stand the camera on it's side. I chose to keep it the way it is.


Upstream from 6x6 is 6 x 7 and 6 x 9 this will be the first time I have made images at these negative sizes so I'm excited to see what they will look like. Something else I did not realize was the large margin between the frames for 6 x 7. The margin is that big I think you could get another frame if the numbers were spaced differently on the backing paper. I'm used to the frames on some occasions with 6x6 bleeding into each other. When it came to the 6 x 9 negs there is no margin making it look like one image over the whole length of the film. Requiring precise cutting when putting them into the storage sheets.

How the different negative sizes are achieved.

It is simple to change the negative size with the Zero you just move the little divides into the preset slots once done you load the film and away you go. 

It has taken quite a time to realize that Fomapan 100 in my case developed in RO9 gives me a stile of image that I really like, making it my default film, dev combination when using this camera. Although that my change since I started using delta 100.

There is a picture post to follow showing some of the images made using the different formats. They have been posted click here.

Monday 23 January 2017

Welcome to the New Year

 On a grey and dull day I am going to say a big, bright THANK YOU to all my follows, subscribers and supports for visiting the blog over this last year. Views are up big time even though it has been a bad year personally.

As is the custom for this time of year I have a new header picture that shows a hand picking up or putting down an Agfa Isolette I will leave it up to you how you interpret my intent. If any of you have any suggestion please share your thoughts.

As I sit here writing this, it is peeing down with rain, which has inspired me to set up my pinhole camera to make an image that will take eighteen minutes to expose. Not the longest exposure I have made but getting there. This is  the start of my rediscovery of the wonders of  pinhole photography and the Zero camera in   articular which I hope to use more this year  instead of leaving it in the camera bag. A new   years resolution of sorts!

Talking of new year resolutions photograph wise -  have you set any? I don't as a rule but this  year is  going to be different I have two things I  could like  to achieve one I have already  mentioned the  other is to spend more time in the darkroom  printing, something that I can neglect. I find it  difficult to spend anytime at all during the  summer months in the darkroom I  o not like  wasting time inside if the weather is  bright and  warm, even in the evenings. I  suspect I'm not the  only one. What are your thoughts? 


I'm looking forward to seeing you all again this year. Don't be shy if you drop by - have a chat (leave a comment) - always interested in what you get up to. I shall leave you now as my mistress the darkroom is calling! I will chat with you all again later. Before I leave I would like to wish you all the best for the year ahead. 

Friday 28 October 2016

Picture Post Zero

It has been sometime since my last article reasons behind this absence will become clear in later posts.

To get things going here are some images I made with a Zero pinhole camera multi-format.  















Technical Data:

Zero multi format, Negative size 6x6, Film FP4+, Developed in ID11 (first five), Developed in RO9 (last three) Printed on Ilford multigrade RC gloss, Grade 3, Developed in Multigrade.











Saturday 9 June 2012

Light meter.


The weather has been great this past week and not one to pass up such a rare opportunity I have moved my office to the end of the garden where it is shaded  by some silver birch trees. If it was not for the shade I would not be able to see the computer screen.


As you know from previous posts I have become quite smitten with my Zero 6x9 deluxe camera. It's lack of through the lens metering! Your right no lens, I have had to revert to using a hand held one. NO! I'm not going to take another camera with TTL with me. Why load myself down, believe it or not even with a tripod it is lighter than my standard kit. Besides I don't need the light readings to be that spot on especially when needing to account for reciprocity.


While writing this I'm joined by a baby starling. It looks like the one I saved from the jaws of the cat the other day. The bird seems happy for me to be here as he/she walks up to and around the chair I'm sitting in looking for local delicacies. It appears I'm the last thing it needs to worry about.


Two types of hand held light meter
I have two types of meter to choose from they are tried and trusted run of the mill units. The oldest one uses a selenium cell which is a type of photovoltaic / solar cell. When the front of the meter is exposed to the light it produces a small current which moves a needle that indicates how much light there is. This type of meter is batteryless but one of the down sides is in low light situation it requires a certain light level to read accurately.


The other light meter is a CdS unit or Cadmium Sulfide cell that has a greater low light sensitivity. This light meter works by regulating the energy in the battery rather than producing a current as in the former. With this type of meter it can suffer from drifting this is where the meter has been shown a bright light temporarily making it blind. The cell has a memory and can fool you into thinking the level of light has not changed. It is a good idea to let the meter read the scene for several seconds to make sure it has read it properly.


Note the starling casting a
critical eye over the
photographs.
Todays meters do not suffer from this they use silicon blue or gallium arsenide photocell coupled to a memory chip  so are unlikely to have a time lag in changing light conditions.

My light meters are general purpose, they read reflective light from a fairly large area of the subject which is about 30 degrees. They round this reading to an average of 18% ( a mid grey) no matter how dark or bright the scene is. This is where the zone system ( See Ansel Adams The Negative for more info) comes into its own or a system of your own to allow for it. I have my own method that works well with a little bit of intuition thrown in. Well! Most of the time.

Since writing this my CdS light meter has passed away. It will be missed.

Saturday 5 May 2012

Light striped prints


Another printing fault is light pollution known as fog. This is assuming it hasn't happened in the camera.


The dark line you see running up this picture
 it the result of light
getting to the light sensitive material. Fogging .

         It Could be where stray light from a darkroom not properly blacked out has found its way to the light sensitive side of the the paper you're using.

         Your safe light is too close to the enlarger and or the wrong colour.

         It can also happen if your enlarger leaks light when being used.

         Badly stored and out of date paper can also be fogged.

The causes of these faults, also point to ways of curing them. This post suggests a way of detecting light induced fog.

Sunday 22 April 2012

Zero pinhole camera Project double take.



Camera Zero 6x9 delux
FP4+ 120 format, 6x6 neg,
 developed in PMK Pyro no afterbath,
Printed on silver proof paper gloss
Developed in Moersch 6 blue tone.
My attitude when using the Zero camera has become very relaxed. My approach is to look at the scene, roughly point the camera at the subject, take a light reading, calculate the exposure and open the shutter for about the right amount of time. Once taken move on to the next one. I'm not sure if this is such a good thing as I'm making a number of double exposures, which have turned out well more from luck than design.


Camera Zero 6x9 delux,
FP4+ 120 format, 6x6 neg,
developed in PMK Pyro with afterbath
printed on silver proof paper matt
 developed in Ilford warm tone
This has led to project double take but lets be honest basing an idea on a set of lucky mistakes does not bode well for the results. But then history is littered  with stumbled upon ideas that have gone well. With this in mind I'm going to carry on with the blindfold method of not winding on. I could be more controlled by making single shots and then combining the negatives in the enlarger to produce a double exposure but  this may take away the element of surprise and randomness to the results. With that said there needs to be some planning to the picture taking, so I'm going to use a location I know quite well in order to make the combination of double exposures easier to plan cutting down time looking for shots. It will be hit and miss anyway with this approach but hopefully not so many misses. The first roll is going to be a bit of an experiment so I'm not expecting many good printable photographs. But in this context what is going to be a good picture I think it will boil down to how well the combinations work together; once the first film is developed I'll be able to refine my method.


I'm setting the zero 6x9 deluxe to 6x6 neg size, loading FP4+ which will be developed in PMK Pyro using my revised method of inverting with an after-bath. I may not continue the bath for subsequent rolls if the photos look to soft. And so the project begins.

Wednesday 22 February 2012

FP4+ developed in PMK Pyro method update


Zero camera, FP4+ developed
in PMK Pyro
The first permanent change is to go from two inversions every twenty seconds to one every fifteen seconds which is a reduction of two per minute. When I did this I wasn't sure if this would make the density of the negative less, as it turns out it has increased it, making for better toned prints. My conclusion is by decreasing the time between each inversion the developer in contact with the film surface is fresher for longer hence the increase in density. 

Zero Camera  FP4+ developed in PMK Pyro
Pelham bridge road Lincoln




I have also used an after-bath  (only with 120 FP4+) which does change the colour of the film base and seems to make them easier to print and at a softer grade. It has been suggested that the bath can reduce the sharpness of the negatives. Is this reduction noticeable? That's an answer you will have to find for yourselves as  I have only been using it so far with the film that's been exposed with the Zero pinhole camera, which is not known for it's ultra-sharp negative production. I will not be introducing it across the range of other makes of film I develop in PMK. I'm happy with the fine toned negatives it produces and see no reason to add the bath. 

Zero Camera FP4+ developed in PMK Pyro
Those of us who like to go against the mainstream will use it for creative or pictorial purposes but you need to be sure that the grain is sharp across the negative, it may add that extra something you are looking for to the final photograph.









Related posts:

PMK Pyro after-bath
PMK Pyro developer part B
PMK Pyro working solution