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Search: Posts Made By: JOReynolds
Forum: Colour film 26th February 2021, 09:42 AM
Replies: 6
Views: 148
Posted By JOReynolds
I heard that Ektachrome-X, intended to be...

I heard that Ektachrome-X, intended to be processed in E4, was partly funded by NASA's space program.
The E4 process preceded the first developer with a prehardener containing succinaldehyde (nasty)...
Forum: Photography in general 23rd February 2021, 05:28 PM
Replies: 28
Views: 431
Posted By JOReynolds
Accurate exposure

Thanks, Bob. I am afraid that the discussion was getting a bit silly.
The most significant source of errors in printing is the aperture setting of well-used enlarger lenses. The aperture ring...
Forum: Photography in general 23rd February 2021, 02:53 PM
Replies: 28
Views: 431
Posted By JOReynolds
Which two systems do you mean? Your spreadsheet...

Which two systems do you mean?
Your spreadsheet is interesting but does not indicate a meaningful error in the timings. Timer 3 is a instrument intended for photographic printing, not a chronograph....
Forum: Photography in general 23rd February 2021, 11:45 AM
Replies: 28
Views: 431
Posted By JOReynolds
Exposure times < 10 sec are displayed as decimal...

Exposure times < 10 sec are displayed as decimal fractions, for example 1.0, 1.1, 1.2, 1.4.... Above 10 sec they are 11, 12, 14, 15, 17, 20, 22.... The actual rounding error is never more than 1.2%,...
Forum: Photography in general 23rd February 2021, 11:17 AM
Replies: 28
Views: 431
Posted By JOReynolds
A couple of the comments printed below the Grain...

A couple of the comments printed below the Grain video on YouTube complain that there are 'not enough buttons' on the Timer 3. All the functions, Focus, Off, Start, Pause, Cancel, are easy to learn...
Forum: Photography in general 23rd February 2021, 10:26 AM
Replies: 28
Views: 431
Posted By JOReynolds
Test strips with Timer 3

The logarithmic mode and audible signal make test strips a breeze. First, decide the increment between each patch - half a stop in this example. When you're close to the final exposure you can work...
Forum: Photography in general 12th February 2021, 06:27 PM
Replies: 11
Views: 535
Posted By JOReynolds
You have it in one, Paul

You have it in one, Paul
Forum: Photography in general 12th February 2021, 06:19 PM
Replies: 8
Views: 228
Posted By JOReynolds
Errata

I read it - and I didn't drift off until I reached the end.
Forum: Photography in general 12th February 2021, 06:07 PM
Replies: 1
Views: 99
Posted By JOReynolds
RPS exhibition

The BBC website is publicising the Royal Photographic Society exhibition. https://www.bbc.co.uk/news/in-pictures-56016031
Magnificent images!
Forum: Darkroom 1st February 2021, 07:01 PM
Replies: 12
Views: 503
Posted By JOReynolds
iPad as lightbox

I have seen a small one in Tiger (Copenhagen) that is supplied with a bag of capital letters. It's only about 10 and is battery-operated. I have not used it.

A while back I was asked to email...
Forum: News and Announcements 25th January 2021, 12:04 PM
Replies: 9
Views: 278
Posted By JOReynolds
A failed KickStart?

As a long-time Hasselblad user, the concept of an instant-print back is appealing. I didn't know of it before today. But when I looked at the website, I found hundreds of comments from angry backers,...
Forum: Colour film 16th January 2021, 06:04 PM
Replies: 18
Views: 906
Posted By JOReynolds
prices

I bought a pair of ready-readers at Poundland a while back. Nothing remarkable, except that they cost a pound.
A day or two later I was in the prescription queue at Boots and my wife was looking at...
Forum: Cameras - Large Format 11th January 2021, 11:14 PM
Replies: 15
Views: 930
Posted By JOReynolds
I have a Husky Quickset tripod, manufactured in...

I have a Husky Quickset tripod, manufactured in the 1960s. The top casting is steel, as are the legs (the Gitzo equivalent is of light alloy). The height adjustment is by twist collets. These become...
Forum: Darkroom 3rd January 2021, 11:51 PM
Replies: 13
Views: 572
Posted By JOReynolds
I used a 23C11 for several years. The C stands...

I used a 23C11 for several years. The C stands for colour - a compartment for colour filters. Good stuff, but the bellows were a bit stiff and tend to work against the friction focussing drive with...
Forum: Cameras - Large Format 28th December 2020, 12:48 PM
Replies: 3
Views: 341
Posted By JOReynolds
Arca Swiss monorail

I am considering the purchase of a monorail camera for architectural work. I have suitable spirals and drying facilities for 120 film and a de Vere 203 for negatives up to 6x9cm. The obvious camera...
Forum: Cameras - small format 16th December 2020, 03:49 PM
Replies: 6
Views: 320
Posted By JOReynolds
Nikon SP

I had a Nikon SP in the mid-1960s and it was magnificent except that the Contax-style focussing fingerwheel was stiff with the 105mm lens attached. And the lens hood for the 35mm masked a lot of the...
Forum: Introductions 14th December 2020, 04:14 PM
Replies: 19
Views: 808
Posted By JOReynolds
Wilkommen bei FADU, Uwe.

Wilkommen bei FADU, Uwe.
Forum: Darkroom 6th December 2020, 11:13 AM
Replies: 21
Views: 1,041
Posted By JOReynolds
Yes, my dry bench is at conventional height,...

Yes, my dry bench is at conventional height, which I regret. It was designed for a wall-mounted Durst. But with my De Vere 203 with an Ilford 500 head, the ceiling is not too low and I can reach the...
Forum: Alternate printing processes 2nd December 2020, 12:10 AM
Replies: 6
Views: 481
Posted By JOReynolds
reversal colour prints

It's much easier to reversal-process colour paper because all of the silver is bleached out, leaving only a dye image. In B&W, the desired image is contained in the silver produced in the second...
Forum: Equipment 30th November 2020, 06:09 PM
Replies: 12
Views: 602
Posted By JOReynolds
Never forget the darkslide!

Me and the Missus have been watching old episodes of The Crown on Netflix. There was a scene with 'Anthony Armstrong-Jones' in which he was shooting 35mm, but resting the camera on a Hasselblad 500C...
Forum: Photography in general 5th November 2020, 10:58 AM
Replies: 9
Views: 411
Posted By JOReynolds
Although the x-ray equipment has changed greatly...

Although the x-ray equipment has changed greatly in the last few decades, the sensitivity of silver halide exposed to very short wavelengths is governed by the laws of physical chemistry and so has...
Forum: Enlarger Manuals 28th October 2020, 08:04 AM
Replies: 1
Views: 1,014
Posted By JOReynolds
I live in France for part of the year and I have...

I live in France for part of the year and I have twice encountered Ahel enlargers in commercial darkrooms. They are quirky in design, much like French cars of the fifties, but work well in a cramped...
Forum: Photography in general 14th October 2020, 07:21 PM
Replies: 2
Views: 318
Posted By JOReynolds
New? exposure meter

I have just read of a Kickstarter campaign to get a new exposure meter, being developed by Hedeco, onto the market. It is intended to sell at 129.
Forum: Photography in general 14th October 2020, 03:25 PM
Replies: 10
Views: 598
Posted By JOReynolds
Chris Killip

I briefly worked with Chris when we were both assistants at Adrian Flowers' Studio in Tite St, London SW3. He said that it was there that he learned (or just became familiar with?) a large-format...
Forum: Colour printing techniques 9th October 2020, 06:02 PM
Replies: 9
Views: 1,179
Posted By JOReynolds
A novel solution to poor longevity

This is only theoretical - I've not tried it - but once mixed, ferric EDTA (brown bleach) and thiosulphate (fix) will degrade one-another in the presence of oxygen (air). Why not try bleaching in...
Showing results 1 to 25 of 500

 
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