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

[Corran]

Great overview post Randy. I wish we could get a sticky or some kind of info page on the main page. What happened to our resident Father? Good point about the "tint" of the film. Confusing, to newbies.

I have directed many people to this thread from Facebook - all say "Almost 500 pages?! I'm not reading that!" So it goes. I can only type out the same general recommendations so many times before I decide to leave it to others - I'd rather be out photographing. Which is where I'm going now .

[michael_wi]

A good jumping off point is my spreadsheet I posted back in #4786

There have been a couple of updates, thanks to those who did.

Chewed through thread from where I left off a few years ago. Really nice images in here.

I made a spreadsheet culled from APUG, here, blogs, flickr, and google searches. It is a few years out of date. Meant to share this a long time ago but life gets in the way sometimes.

Find on my google docs - https://docs.google.com/spreadsheets...it?usp=sharing
It is set to anyone can edit.

EDIT:
It contains 4 tabs
1) name, EI/ISO ratings, sensitivity types, light exposed under (when given or obvious), and development info.
2) Film names, types, and box thumbs in an "equivalent" table. Discontinued films are also included
3) Notes, DIY developers with credit, Andrew O'Neil's X-Ray Film Reciprocity Effect chart (2010)
4) ANSI standard cut film sizes. in, mm, min/nom/max for 2" x 3" to 12" x 20" and 9cm x 12cm to 24cm x 30cm

[Tin Can]

Michael,

Great work. I missed it last year as I took 6 months off this forum. I missed Andrew O'Neal's contribution as I was not on Apug of LFPF in 2010.

This is a great compilation. Very useful.

Your link is bad in today's post, 404. The link works in the original post.

I downloaded it as .xls and it opens perfectly in Office Libre.

Perhaps add a preface about all X-Ray film is blue tint.

Your chart should be a sticky. Let's try to promote that.

Thank you!

[jon.oman]

Here is the good link: https://docs.google.com/spreadsheets...#gid=839610233

[andrewch59]

Here is a link to a flikr thread and what they rate xray film speeds: https://www.flickr.com/groups/147199...7624079554297/
CXS high speed blue is rated at iso 200 by one member, these speeds were recommended by the ADMIN:
1) Kodak Mammography Film
MIN-R 2000 Film
EI or ISO = 125

2) Kodak Scientific Imaging Film
X-OMAT Blue XB
EI or ISO = 320

[andrewch59]

After reading some of the actual xray radiology sites the sensitivity of xray film is represented by a letter and is all to do with the size of the silver nitrate crystal, one site states that half speed blue has the smaller grain size and recommended where fine detail is required. Don't ask me for references, it was just a perusal.
If you were to go way back to the beginning of this thread (1st page) recommended film speeds are offered, high speed blue is recommended at iso200.

[koraks]

I use the half speed blue at the same iso as my Agfa green at about 80, what did you notice are the main differences between blue and green?

Well, spectral response, obviously. Greens render very dark and skies always blow out white. While with green film, the sky can be held back a little with a yellow filter.

[HT Finley]

I got interested in this thread some years ago. Then went through an extended period of abject poverty before I could explore it. It's been years now. And now I want to read every post. But all the links and photos have been stripped out of the thread. Can anybody tell me how far back in time in this thread (or any other) I can go before the links and photos get removed from the posts? I want to do 8x10, and have no intention of paying the ridiculous pan film prices. I think a lot can be done with xray film, at least till they jack up prices and phase it out. Hmm..or has that time arrived?

[dpaqu]

It may help newbies that drop into these discussions without much research to always state the tint color of all X-Ray film.

As we know, a one-time reference is lost in this vast and endless thread.

This may eliminate a lot of repetitive confusion.

Is there a reference to successful development methodologies for the film you discussed? Obviously I would be thrilled if there was a summary of what has collectively been learned.

[Tin Can]

http://www.largeformatphotography.in...=1#post1390800

Is there a reference to successful development methodologies for the film you discussed? Obviously I would be thrilled if there was a summary of what has collectively been learned.