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By chance I have just purchased a godox sl60w led continuous light, just to help achieve decent light for portraits, just waiting on the parabolic softbox to arrive. I have been using a very low wattage light with no shade to try and achieve the soft shadow effect, but the light is still a little harsh. Surprisingly the godox produces a good daylight balance, its perfect for my small area.
Peter, reading your suggestion I had one of those Homer Simpson *doh* moments.
Self-evident in hindsight (like so many things in life).
I was so concerned with preserving the directional "feel" of my light setup, that I forgot that the room lights would have practically no effect on the exposure, since the LED is so much brighter.
Thank you for this!
And my eyes thank you too:)
Andrew, your light looks very nice.
Mine is rather ghetto. It's one of those LED flood lights for outdoors.
Very harsh by itself, but quite usable with a simple paper towel attached to its front, and a small piece of cardboard attached to its side facing the camera—to eliminate lens flare.
(I tried a few options for diffuser material, but the plain paper towel worked best while cutting the least amount of light output—plus these lights don't get all that hot, so there is no fire hazard).
Making what I have at hand do what I wish I had, in terms of equipment, is one of those things I take pride in.
If I had the money, as they say… but then again I like Buckley's approach to the subject in his "Satisfied Mind".
Frugality is natural for me, hence the use of x-ray film, the godox was a plunge into cheaper powered led lighting (60w) after watching a few you tube vids, the parabolic was a "christmas present to self".
Anyways, your result looks pretty damn good.
That's where covering some cardboard with aluminum / aluminium foil to use as a reflector on the shadow side comes in. ;-bQuote:
Originally Posted by Thodoris Tzalavras
Attachment 184630
Green x ray film, iso 80, 8 sec, wollensak velostigmat, tray developed in rodinal
Attachment 184702
Ross 16 inch Portrait Petzval, green xray iso 80, 16 sec exp, developed in rodinal
Film-folk.com sometimes has rodinal. Fotofabrik sells their own version of Rodinal which they call Parodinal. YMMV.Quote:
Originally Posted by Corran
DIY 10x12 camera, fuji super HR-U-C in HC110 1:70
Still fighting with light leaks on the camera.
https://farm5.staticflickr.com/4878/...6b5df6ca_c.jpghammer by Vance, on Flickr
I like it Vance, gives it that 1800's collodion look
Attachment 185499
my new 60w light with softbox, green xray, wolly velostigmat, developed in adonal
Great!
Good light.
I almost missed the file name of the image.
:)
60w light? How long as the exposure and at what aperture?
EDIT: Never mind, I saw the name of the light above. It's actually 60 watts of LED which would be as bright as something incandescent with much, much more power. :)
I would say it is as bright as my 600w mole richardson, minus the heat and constant supply of globes needed. I was sceptical about using LED lighting, this one was cheap enough to experiment with, and so far it has been great. A bonus is the bowens mount
Now that's very nice Andrew meaning post 5164��
Thanks Bazz, they all look a little different when shrunk so much. Welcome I havent seen you on here before, look forward to seeing some of your masterpieces. Really enjoyed the landscapes you did.
Sorry Bob, its required for membership...:cool:Quote:
Originally Posted by bob carnie
This thread has given me the courage to try my hand at 8x10. The weath if information is a little overwhelming(I’m barely part way through it), but hopefully Ill be able to contribute soon. I just love the look the film gives and I think it should make really nice platinum and cyanotype prints.
Hello, I'm trying Kodak's x-ray film. the developer of collagen in the cuvette, after the development in the center remains a spot, as if there does not get the developer. Please tell me how can I fix it ? sorry about my English.
Attachment 185979
Looks like uneven development to me. Can you provide more details as to how it was processed?Quote:
Originally Posted by Sergei
What language do you know well?
que lingua?
Looks like agitation or sloshing problems
Quote:
Originally Posted by Sergei
Yes. I take a ditch at the bottom of which lies the glass, so as not to disrupt the emulsion. I'm showing signs of ditching. at the time of developer sheet begins to blacken at the edges in the center ostaptsi like mist not proyavlyaetsya to the end.Quote:
Originally Posted by Alan9940
Russian
RussianQuote:
Originally Posted by Randy Moe
We have Russian members, one is very good at X-Ray.
Look for http://sergeirodionov.com/large-format-photography/
Quote:
Originally Posted by Sergei
Thanks,
Сергей, я не специалист в рентгене, я только перевожу. Все склоняются к мнению ,что у вас неравномерное проявление. Во первых я бы убрал стекло из кюветы. Фильм достаточно прочная вещь и он не повpeдится если у кюветы дно не имеет каких нибудь крупных повреждений или царапин. Во вторых фильм в кювете должен всегда лежать фотослоем наверх. Покачивайте кювету за края из стороны в сторону чтобы фильм двигался в проявителе и следите чтобы фильм был погружен в проявитель и не всплывал на поверхность. Вполне возможно ,что в вашем случае фильм либо приклеился к стеклу или лежал на его поверхности и в этом месте доступ проявителя к поверхности фильма был весьма ограничен и как результат недопроявление. Опять же, я не специалист в этом фильме, Сергей Родионов может быть подскажет вам лучше. Свяжитесь с ним.
I google translated the Russian.
I don't believe in processing film emulsion down. Scratches. I slide the film in and down in the middle the solution. Usually no pushing down needed. Then gently lift each tray corner making waves.
Here's a youtube. https://youtu.be/l8XqGBURUUM
That's what I wright Randy. Film in the tray with emulsion up. Unfortunately the Google translated it in absolutely opposite way.
Good! Glad google is not perfect.
I had a lot of questions when I started. Normal.
Sergei Rodionov was a big help to me. We met in person a few times.
Quote:
Originally Posted by R.K
I use kodak green, emulsion on both sides and very soft, so glass on the bottom of the tray is necessary.Quote:
Originally Posted by Randy Moe
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
Thanks Randy, some deliberate vignetting to highlight the subject. Hopefully some commissions may come my way next year
I know I probably asked this before, but where is the most logical place to source out xray film ... I am not looking for cut sheet but rather rolls so I would be interested in a distributer or someone who handles larger film sales.
This thread is over 520 posts so I hope I am forgiven not going backwards on this
thanks
Bob
Trade show ends today In Orlando
This reseller is active https://equipment.merryxray.com/
Call them.
thanks RandyQuote:
Originally Posted by Randy Moe
I called them , really not helpful ,she had no clue if they sell any of the products in rolls, I was interested in a couple of them but only cut sheet from what I could squeeze from the CUSTOMER CARE person.
I didn't say it would be easy.
Huge rolls of X-Ray are somewhere in USA or Mexico.
Looking at their website hints there are still industrial uses for X-Ray film doing non destructive testing and scanning. I was just looking at this scanner http://www.vidar.com/ndt/index.htm There may be no other way for some specialities. IDK
Also it seems there is still a market for historic mammogram X-Ray digitalation. Compare and contrast.
Try Kodak, Ilford and the rest, maybe X-Ray film will live on...
Quote:
Originally Posted by bob carnie
Bob, Just to clarify. Are you looking for uncut rolls of the sheet stock, or coated onto roll film stock?
I am looking for rolls to put on a Lambda, 30 inch roll x 200ft preferrably.Quote:
Originally Posted by Mark Crabtree
I understand this material is very fragile.
Bob
Found another lead...
This NDT supplier sells 14" X 200 ft rolls.
https://www.mpmproducts.com/structurix-d4.html
Ask them about 30" wide rolls and what is the spectral range
thanks RandyQuote:
Originally Posted by Randy Moe