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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy
It does help - thanks. I will look into the 3" tubes. If you get a chance, perhaps post a picture of your tube assembly some time - or if there is one already posted somewhere, can you direct me to it. Thanks.
Randy (and anyone else who might be interested),
Finally took some pictures of the PVC tubes that I mentioned testing.
Top pic from left to right:
18x24cm/8x10" tube (takes one film).
13x18cm/5x7" tube (takes two films).
End cap assembly, glued to a coupling.
Coupling by itself.
Screw cap with its base.
Bottom pics from left to right, looking through:
18x24cm/8x10" tube
13x18cm/5x7" tube (with the "stopper" of the coupling protruding, which helps the two negs stay away from each other)
Coupling
https://farm1.staticflickr.com/873/2...3623aef9_b.jpg
Now, since my last post I developed 10 more sheets of 18x24cm film.
Half of them single-sided mammography film, and half double sided.
8 came out ok.
1 refused to come out for washing (even though after fixing I place the tubes vertically in the sink and fill them with water to reduce friction), resulting in two massive scratches on the back side.
1 came out with streaks of uneven development (no idea why).
Also, I don't have a motorized roller base (had plans of building one if/when I concluded that this developing method works for me), and I can tell you that manually rotating the tubes for 16min for each sheet gets old real fast.
In conclusion, this method might be worth looking into, only if you have a motorized roller base, *and* you shoot a relatively small amount of film.
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Re: Use of X-ray film: technical discussion with example images
Scan from a contact print on Ilford MG warmtone paper at grade 1.
More often than not, I make two identical exposures of any scene I deem worthy, so that I get a second chance if processing goes wrong on the first negative.
In this case, the first one came out ok (way back when), so the duplicate was kept aside to be used for testing.
The negative that made this print was developed last week, more than two years after exposure, which speaks volumes for the stability of the latent image on exposed xray films (or at the very least on this particular film, Agfa CPG+).
18x24cm negative (double sided, green sensitive), developed in Ilford MG paper developer (1+50) in a Jobo 2830 drum for 8'min.
https://farm1.staticflickr.com/924/4...00b07c51_b.jpg
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Re: Use of X-ray film: technical discussion with example images
I had a similar experience with Kodak High Speed Green X-ray film. In 2012 I made four exposures of a scene and developed three of them over the next few days. The fourth sheet stayed in my paper safe for two years before being processed in 2014. The image looked identical the best of the three processed two years earlier. This is significant, because X-ray film is almost always processed immediately after exposure in a professional setting, so the manufacturers don't have any reason to strive for long term latent image quality. I'm guessing latent image preservation goes along with other desirable characteristics that good X-ray film needs to have.
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Re: Use of X-ray film: technical discussion with example images
Thodoris, thankyou for sharing your experiences with your tubes, much the same experiences I had with tubes, but you had much better results. Speaking of the electric rollers, I had one, using a mod54 in a Paterson dev tank (3 spool version). The only problem with the electric roller I found was that as the developer is only turning one way I was still getting uneven development, so I got out my spare electric roller to use in the opposite direction. I changed rollers every minute or so and got really good results
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Re: Use of X-ray film: technical discussion with example images
Well, sharing our experiences and inspiring each other is what it's all about, right?
Here is a scan from a contact print on Hahnemühle Platinum Rag coated with Mike Ware's Cyanotype formula.
Using the same in-camera negative from which I printed the silver gelatin contact print in my previous post.
https://farm1.staticflickr.com/828/4...005220d3_b.jpg
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Re: Use of X-ray film: technical discussion with example images
Thanks for posting both prints.
I am wavering on Cyanotype
Which do you prefer?
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Re: Use of X-ray film: technical discussion with example images
Randy,
Even though I do like how the cyanotype turned out (also did a darker version, but I like this one better), I'm not the biggest fan of this process in general.
Despite all my experience in silver printing, my only previous experience in "alternative processes" are a handful of prints I did some 20 years ago in a workshop. Still a total newbie, taking my first steps in climbing the proverbial learning curve.
(Having a working knowledge of sensitometry helps immensely though.)
So, before trying out something more challenging, like palladium or carbon transfer, I thought it would be best to try a simpler (and cheaper) process first.
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1 Attachment(s)
Re: Use of X-ray film: technical discussion with example images
30x40cm negative (double sided, green sensitive), hand development on plastic trays.
D76
1/1
8 min, 20°C
continus agitation
film rated 9 ASA
Base rabbit cages trays are useful, cheap and available in large format dimension.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Miguel Coquis
30x40cm negative (double sided, green sensitive), hand development on plastic trays.
D76
1/1
8 min, 20°C
continus agitation
film rated 9 ASA
Base rabbit cages trays are useful, cheap and available in large format dimension.
Nice!
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Thodoris Tzalavras
Randy,
Even though I do like how the cyanotype turned out (also did a darker version, but I like this one better), I'm not the biggest fan of this process in general.
Despite all my experience in silver printing, my only previous experience in "alternative processes" are a handful of prints I did some 20 years ago in a workshop. Still a total newbie, taking my first steps in climbing the proverbial learning curve.
(Having a working knowledge of sensitometry helps immensely though.)
So, before trying out something more challenging, like palladium or carbon transfer, I thought it would be best to try a simpler (and cheaper) process first.
Very good idea that I should follow!
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Re: Use of X-ray film: technical discussion with example images
Maybe try Van Dyke! I made some from x-ray film years ago. I personally am not a fan of the color of cyanotypes generally. I've seen some toned cyanotypes that were okay though, but never experimented with that myself.
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Re: Use of X-ray film: technical discussion with example images
Anybody using Pyrocat HD with X-Ray film?
I have read Sandy King many times. I will try Pyrocat HD Liguid glycol from Photograghers Formulary.
I deduce from Sandy King's testing that Pyrocat HD may be good for Azo and Ilford Multigrade paper. The stain may work differently on each and perhaps in X-Rays favor.
I ordered some today.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
jon.oman
Nice!
:)
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Miguel Coquis
30x40cm negative (double sided, green sensitive), hand development on plastic trays.
D76
1/1
8 min, 20°C
continus agitation
film rated 9 ASA
Base rabbit cages trays are useful, cheap and available in large format dimension.
Miguel, beautiful! I see the x-ray film is working very well for you.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
Anybody using Pyrocat HD with X-Ray film?
I have read
Sandy King many times. I will try Pyrocat HD Liguid glycol from
Photograghers Formulary.
I deduce from Sandy King's testing that Pyrocat HD may be good for Azo and Ilford Multigrade paper. The stain may work differently on each and perhaps in X-Rays favor.
I ordered some today.
It's the only devloper I've used, apart from a failed experiment with Rodinal. See Mercury Photo Bureau for examples.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
seezee
It's the
only devloper I've used, apart from a failed experiment with Rodinal. See
Mercury Photo Bureau for examples.
Rodinal is all I have used on any film for 7 years. I am anxious to try Pyrocat HD.
Very interesting X-Ray project and website, I put it on a slow scroll and love the flutist placement. Saw a couple a couple times. I think...
Do you print the musician portraits?
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
Anybody using Pyrocat HD with X-Ray film?
Yes, usually 1+150. Works like a charm.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
All I have seen are round corners. Buy larger and cut it down. I cut to all smaller sizes, even down to Hasselblad.
One advantage to RC is no sharp edges scratching other negs if shuffling.
Save scraps for fixer checking.
The other advantage is that you can use the corner to remind you which way was facing the lens if you're using film with emulsion on both sides. I always load mine with the rounded corner placed where the notch codes would normally go.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
Rodinal is all I have used on any film for 7 years. I am anxious to try Pyrocat HD.
Very interesting X-Ray project and website, I put it on a slow scroll and love the flutist placement. Saw a couple a couple times. I think...
Do you print the musician portraits?
Thank you. I am still setting up my darkroom so I haven't made any prints yet. Depending on whether I get any good at it is going to make a big difference when I start grant writing to finance the show — paying someone else to print increases the cost by an order of magnitude!
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
koraks
Yes, usually 1+150. Works like a charm.
I dilute 1:200, but that's for semi-stand development in a daylight tank (HP Combi+). YMMV.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
Anybody using Pyrocat HD.
Been there , had horrible results , went back to r09.
I honestly think there is no magic developer, magic processing temp or time .
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Re: Use of X-ray film: technical discussion with example images
ro9 is all I have used for 7 years.
The PHD just arrived. Now I have to try it!
Quote:
Originally Posted by
SergeiR
Been there , had horrible results , went back to r09.
I honestly think there is no magic developer, magic processing temp or time .
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Re: Use of X-ray film: technical discussion with example images
For this year's Pinhole Day, I converted my Kodak Master View 8x10 to a pinhole!
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Kodak Master 8x10 camera, fitted with a 0.46mm pinhole, at 120mm focal length.
30"sec exposure on 18x24 Agfa HDR xray film.
Developed in Ilford MG 1+50 for 8'min in a glass plated tray.
Scan from negative, finished in PS.
https://farm1.staticflickr.com/909/4...c7dce86d_b.jpg
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Thodoris Tzalavras
For this year's Pinhole Day, I converted my Kodak Master View 8x10 to a pinhole!
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Kodak Master 8x10 camera, fitted with a 0.46mm pinhole, at 120mm focal length.
30"sec exposure on 18x24 Agfa HDR xray film.
Developed in Ilford MG 1+50 for 8'min in a glass plated tray.
Scan from negative, finished in PS.
https://farm1.staticflickr.com/909/4...c7dce86d_b.jpg
Great pinhole image!
I've participated in Pinhole Day in the past. No time this year!
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
Anybody using Pyrocat HD with X-Ray film?
I have read
Sandy King many times. I will try Pyrocat HD Liguid glycol from
Photograghers Formulary.
I deduce from Sandy King's testing that Pyrocat HD may be good for Azo and Ilford Multigrade paper. The stain may work differently on each and perhaps in X-Rays favor.
I ordered some today.
I use Pyrocat-HD with x-ray. 10ml each A and B into 1 litre of water. Flat-bottomed tray, agitated NSEW once every minute. Been doing it this way for 10 years. The same negative prints nicely on silver papers, as well as kallitype, and carbon transfer.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Andrew O'Neill
I use Pyrocat-HD with x-ray. 10ml each A and B into 1 litre of water. Flat-bottomed tray, agitated NSEW once every minute. Been doing it this way for 10 years. The same negative prints nicely on silver papers, as well as kallitype, and carbon transfer.
Thanks, Andrew, that is my interest.
And a stack of Azo 8X10.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Andrew O'Neill
I use Pyrocat-HD with x-ray. 10ml each A and B into 1 litre of water. Flat-bottomed tray, agitated NSEW once every minute. Been doing it this way for 10 years. The same negative prints nicely on silver papers, as well as kallitype, and carbon transfer.
Andrew, interesting. 10ml of A&B. How long is your developing time for a carbon negative?
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Re: Use of X-ray film: technical discussion with example images
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
SergeiR
Nice!
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Re: Use of X-ray film: technical discussion with example images
Sergei, it seems you have extended your R09 times?
Looks very good.
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
Sergei, it seems you have extended your R09 times?
Looks very good.
Just been lazy and 15 was ready on display of watch :)
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
SergeiR
Wowzer!
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Re: Use of X-ray film: technical discussion with example images
Seezee, that's one of the best I've seen on x-ray. I'm going back to give it a try again.
What rating did you shoot it at?
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Re: Use of X-ray film: technical discussion with example images
Kodak Master View 8x10 with a Fujinon W 250mm on a rather windy day by the beach.
Agfa CPG+ xray film, developed in Ilford MG paper developer (1+50) for 8'min.
Scan from a contact print on Ilford MGWT paper at grade 3.
https://farm1.staticflickr.com/865/4...e3975727_b.jpg
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Nukatpiat
Seezee, that's one of the best I've seen on x-ray. I'm going back to give it a try again.
What rating did you shoot it at?
Are you speaking of the OKIE-X project that I linked to? Those were shot with 2 lights and a reflector. I used the same settings listed for these 2 portraits. The key light is set to -5.2f & the background light is set to -4.2f. Pneumatic shutter only fires at ~1⁄25 second. I rate the film at about ISO 25 under the 5600K lights.
Glad to see you're going to try again!
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Re: Use of X-ray film: technical discussion with example images
Could the experienced folk here chime in on my attempt to misuse an x-ray film processor to allow me to use x-ray http://www.largeformatphotography.in...000A-Processor
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Re: Use of X-ray film: technical discussion with example images
ZZ Medical has a 5% discount on everything (including x-ray film) thru 29 May. The code is
Cheers!
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
ro9 is all I have used for 7 years.
The PHD just arrived. Now I have to try it!
Have you tried the PHD?? Whats your opinion on it??
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
andrewch59
Have you tried the PHD?? Whats your opinion on it??
Not yet.
Life keeps getting in the way of photography.
Right now my excuse is unbalanced vision from ongoing surgery.
Soon. I hope.
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Re: Use of X-ray film: technical discussion with example images
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Re: Use of X-ray film: technical discussion with example images
1"sec exposure at f16 on 18x24 Agfa HDR xray film.
Developed in 1+50 Ilford MG paper developer for 8.5'min in a glass plated 10x12" tray.
Scan from negative, finished in PS.
https://farm1.staticflickr.com/901/2...34735d80_b.jpg
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Re: Use of X-ray film: technical discussion with example images
Has anyone had any experience with this x-ray film? It looks like it has been repackaged for sale by this distributer.https://uploads.tapatalk-cdn.com/201...7ce63a6b2f.jpghttps://uploads.tapatalk-cdn.com/201...42618e0b22.jpg
Sent from my iPad using Tapatalk
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Re: Use of X-ray film: technical discussion with example images
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Re: Use of X-ray film: technical discussion with example images
Thank you.
Sent from my iPad using Tapatalk
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
Randy Moe
It's still on sale thru midnight tonight. Coupon code MEMORIAL.
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Re: Use of X-ray film: technical discussion with example images
Amazing deal. To bad shipping is so expensive to the Netherlands. In the end the costs will be more then when I buy a pack of 18x24cm film in the Netherlands. Even when buying three packs of film.
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2 Attachment(s)
Re: Use of X-ray film: technical discussion with example images
Hello. This is my first successful experience with x-ray film.
Fotokor 1 + Carestream MXBE + Rodinal 1:40 for 7 min in a plastic tray.
There was table lamp as a light source and I exposed it about 3 seconds at 4.5 aperture.
I've been trying to shoot outdoors without any luck, the negatives turn out to be heavily underexposed. All this time I rate the film as 100 ISO + 3-4 EV with an external light meter. But after reading the last pages of this thread I see that you rate it as 9-25 ISO, so maybe I should just take a lot more time to expose correctly.
UPD. I have read a bit more and it looks like I screw up with developer dilution and time but not with film ISO.
Attachment 178891Attachment 178892
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Re: Use of X-ray film: technical discussion with example images
Outdoors the speed will vary by time of day. Depending on latitude & time of year, before 10 AM or after 2 PM you will lose speed. This is due the the change in color temperature as well as to the total amount of light.
Your meter reads all of the visible light, but the film only sees blue or blue + green. Too early or too late in the day, not enough blue light.
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1 Attachment(s)
Re: Use of X-ray film: technical discussion with example images
Thanks, seezee! I will definetely take this in attention in upcoming shots.
And I finally found a clue to constantly destroying negatives. My "safelight" turned out to be way too bright, I put in 25 watt bulb and now everything works perfect.
Fotokor at 4.5, ~80 ISO, Rodinal 1:100 for 7 min, DSLR scan
Attachment 179083
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Re: Use of X-ray film: technical discussion with example images
Quote:
Originally Posted by
alefrei
Thanks, seezee! I will definetely take this in attention in upcoming shots.
And I finally found a clue to constantly destroying negatives. My "safelight" turned out to be way too bright, I put in 25 watt bulb and now everything works perfect.
Fotokor at 4.5, ~80 ISO, Rodinal 1:100 for 7 min, DSLR scan
Attachment 179083
Di nada. Since you probably haven't read all 506 pages of this thread, have a look at this and this. Use them with a standard clamp light, such as this.
Cheers,
— CZ