Use of X-ray film: technical discussion with example images

[md99]

8x10 kodak csg, @100, 1:100 Rodinal for 6.30 minutes


Scan-130511-0003www by Sergei Rodionov, on Flickr

You have the most interesting imagination. Thank you for posting your many images in this thread.
Mike

[Randy]

eh? Just stick filter on top of your sensor. For spot - on spot. See how far it now off from "clear" reading. You got yourself compensation.

Exactly Ian, I routinely hold my filters over my handheld meter because I can never, ever remember how many stops to compensate for. Just take a reading without the filter, then meter the same subject with the filter held over the meter lens and take another reading. Works every single time for tired brains....or...do it once for every filter then make a list. I keep forgetting to do that.

[Tin Can]

[QUOTE=SergeiR;1025080]8x10 kodak csg, @100, 1:100 Rodinal for 6.30 minutes

Nice dof and proof anything can make an interesting image. I have been trying to find a still life I want to shoot, and here you show us chips!

With the junk I have, maybe I can find an interesting widgit.

Nice lesson!

[rdelung]

Cheers Randy, I'll try a yellow filter first and see what happens. I'll shoot the same scene with and without and post my results.

Anyone got any suggestion as to how much to compensate for a yellow filter with a blue sensitive film? I'm guessing 1 stop should be enough.

(K2) Medium Yellow comp. would be 2 for regular B&W film. With double sided film I'm afraid you will have to go by trial and error. Hope this helps. Randy Delung ( the other Randy )

[Tin Can]

Ah, now 3 Randy's.

Thank goodness I chose to use my full name, and it's short, maybe I will change to R Moe, as many call me that. The nice ones at least...

(K2) Medium Yellow comp. would be 2 for regular B&W film. With double sided film I'm afraid you will have to go by trial and error. Hope this helps. Randy Delung ( the other Randy )

[gdi]

Finally able to digitize one of my first XRay shots:, and it is actually one of my first 8x10 shots.


Fuji HRT, Processed in Sprint -Std 1-9-_ in a Beseler Drum. I had to strip the back side with bleach because huge spots didn't develop (think I'll stick to trays from now on). Scanned in 4 segments with an Epson 4870 - looking for an 8x10 scanner now!

[premortho]

From what I've seen of the spectrographs, blue x-ray film is mildly orthochromatic, green is fully orthochromatic. My old Ansco data guide says for Super Plenachrome and Plenachrome <similar to green x-ray film>, for sunlight use a 5X factor, for tungsten, use 3X, I would start with 3X and move on to 5X if necessary. 3X, for the younger set, means three times the normal exposure with a medium yellow filter

[Tin Can]

Wow! nice image, and I love how it looks like a miniature!

[QUOTE=gdi;1025240]Finally able to digitize one of my first XRay shots:, and it is actually one of my first 8x10 shots.


Fuji HRT, Processed in Sprint -Std 1-9-_ in a Beseler Drum. I had to strip the back side with bleach because huge spots didn't develop (think I'll stick to trays from now on). Scanned in 4 segments with an Epson 4870 - looking for an 8x10 scanner now!

[SergeiR]

You have the most interesting imagination. Thank you for posting your many images in this thread.
Mike

Nice dof and proof anything can make an interesting image. I have been trying to find a still life I want to shoot, and here you show us chips!

With the junk I have, maybe I can find an interesting widgit.

Nice lesson!

thanks, guys To be honest - it was byproduct of me, trying hand with old C-22 stock, (1st attempt - major failure).. Shot this as just an idea, spurred of ye old Weston's peppers some time ago.

[Ian Greenhalgh]

Cheers Randys etc for the advice. It's an old Zeiss Ikon 40.5mm yellow so not sure what it is. I'll try to pit it over the cell on my weston but the filter is quite a lot smaller than the cell so might be problematic.