Many thanks to all for the advice. The problem was solved - more active agitation.Attachment 186218 This is an image I received today. kodak green 18*24
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Many thanks to all for the advice. The problem was solved - more active agitation.Attachment 186218 This is an image I received today. kodak green 18*24
Very cool!
Quote:
Originally Posted by Sergei
ThanksQuote:
Originally Posted by Randy Moe
Has anyone here used Foma Indux R4? It is intended for NDT use in industry & I know nothing beyond what is on the Foma site.
I have no idea of the sensitivity or the speed when developed to give pictorial contrast. From the comparison chart I guess the speed to be somewhere between 50 and 125 ASA. As for the colour sensitivity........... It could be blue sensitive only. From the Foma information they suggest use of a yellow safelight.
I am waiting on some Rodinal to arrive as well as a sample of the film.
I don't mind if the effective speed turned out very low in order to get pictorial contrast. I have used Eastman copy film and print stock that were 12 and 3 ASA respectively.
OK. So I have received the film. It is in vacuum-sealed daylight packets sandwiched between two sheets of lead foil.
I am assuming that the film is coated on both sides, because I can't tell any difference between the two sides, except there is an impressed 'FOMA R4' on one side.
I have put four sheets in holders. No idea when I will get a good enough day to shoot them.
I will do them with Rodinal for 6 min diluted 1:100, like my other X-ray film.
I looked it up and only found what you found.
I'm sure it will work.
In the scene I was using as a test it was a garden on a cloudy day with the corner of a brick building with a white door frame. I don't think either film has any red sensitivity, so that brick is going to be lacking in detail.Well.....
First test of the Indux R4 was rated 50ASA. I developed in Rodinal 1:100 for 9 min. Barely anything in the shadows.
Some Crontek 4x4 single-sided is OK at that timing, but not exactly snappy.
The Crontek is 25 ASA if developed for 9 min in Rodinal 1:100.
I next gave a mixed tank 6 min with Rodinal diluted 1:50. The Crontek looks better.
The Foma R4 was my main focus of interest, but at least I know what speed it isn't
I have loads of the Foma R4. My next test will be 6 min in Rodinal dil 1:50 with sheets rated at 12 and 25 ASA.
Just for interest i'll do a shot on the Crontek at 50 & 25ASA.
This I will achieve by drawing the slide half way, tripping the shutter. Then I pull it right out and fire the shutter again.
It will waste less film that way, which I really ought to have done today.
Neil,
I don't think any X-Ray film is red sensitive. All my variations are marked..... oddly now that I look.
This is 2016 expiry Kodak which has confusing symbols.
https://farm8.staticflickr.com/7907/...e87b568a_z.jpgCarestream aka KODAK Ektascan 8X10 2016 by TIN CAN COLLEGE, on Flickr
Attachment 187755
Hot Rod show was on again last weekend, this is one of four taken.
4x5 green agfa, adonal 1:100 rotary 10mins, prinzedorff 4x5
Really like!
Love fall off on the left.
Too bad the other Tin Can on the right is there.
A problem at show off events for photography