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

[Edison]

I’ve been shooting Fuji full speed blue rx-n with a yellow filter at iso 25 with decent results. I like it so much I decided to get hr-U green “orthochromatic”. I did some side by side shots with the yellow filter and at iso 25. The green stuff turned out much darker, I’d say 5 stops darker maybe. I think the shadow detail Loss is probably not from the film but from the underexposure. I’ll test hr-u again wo the yellow filter and at iso 6 or 12.

Top two have been heavily shopped to match. Bottom two are flat scans.

Hr-u:

Rx-n:

Hr-u:

Rx-n:


PS this is 10 minutes of tray developed d76 1:2

[maltfalc]

I’ve been shooting Fuji full speed blue rx-n with a yellow filter at iso 25 with decent results. I like it so much I decided to get hr-U green “orthochromatic”. I did some side by side shots with the yellow filter and at iso 25. The green stuff turned out much darker, I’d say 5 stops darker maybe. I think the shadow detail Loss is probably not from the film but from the underexposure. I’ll test hr-u again wo the yellow filter and at iso 6 or 12.


PS this is 10 minutes of tray developed d76 1:2

whatever your issue is, it's not the film, unless you got a bad box that was stored improperly or something. hr-u green should be perfectly useable at iso 100 or higher.

[chris73]

I’ve been shooting Fuji full speed blue rx-n with a yellow filter at iso 25 with decent results. I like it so much I decided to get hr-U green “orthochromatic”. I did some side by side shots with the yellow filter and at iso 25. The green stuff turned out much darker, I’d say 5 stops darker maybe. I think the shadow detail Loss is probably not from the film but from the underexposure. I’ll test hr-u again wo the yellow filter and at iso 6 or 12.

Top two have been heavily shopped to match. Bottom two are flat scans.

Hr-u:

Rx-n:

Hr-u:

Rx-n:


PS this is 10 minutes of tray developed d76 1:2

From my little experience with HR-U i rate it at iso25 and works well with dilluted developers.
As for the yellow filter, when i use a 2x yellow filter with HR-U i give it 3 stops overexposure (instead of 1 in the case of a panchro film)

[Edison]

From my little experience with HR-U i rate it at iso25 and works well with dilluted developers.
As for the yellow filter, when i use a 2x yellow filter with HR-U i give it 3 stops overexposure (instead of 1 in the case of a panchro film)

Thanks what I was thinking, the yellow filter may be cutting out more light than expected. I’ll test again and report back. Thanks!

This is a brand new box from zz medical, so I hope it’s good film.

[Edison]

whatever your issue is, it's not the film, unless you got a bad box that was stored improperly or something. hr-u green should be perfectly useable at iso 100 or higher.

Im only at page 250 or so of the thread, trying to catch up. I hear people mentioning 200 even, but I haven’t seen anyone talk about hr-U specifically, I think.

The zz medical site says hr-u is green, but the spec sheet says “orthochromatic” implying it’s green blue, if I understand it right.

The blue one is rx-n and it’s called “full speed” whatever that means.

I’ll try 100, 50, and 25 iso without the filter, and then as the other comment suggests, essentially iso 3 with a yellow filter. I’m using a 2 yellow 8 which is a mild yellow, typically 2/3 a stop

[Andrew O'Neill]

Once I'm through the 100 sheets of the cxsonline green latitude 14x17 (got about 20 sheets left...), I'll tackle my box of HR-U Green. I'm imagining EI will be similar.

[Tin Can]

I have been buying $1000's of X-Ray film from ZZ for a decade

Always' fresh, in date

No worries with ZZ as they are bonafide MEDICAL suppliers

Iowa is trustworthy

Thanks what I was thinking, the yellow filter may be cutting out more light than expected. I’ll test again and report back. Thanks!

This is a brand new box from zz medical, so I hope it’s good film.

They found me a full case of 14X17 single sided just as it disappeared, that was $1000

Well worth it

I also have plenty of 2x with some coming this week

The old guard dislikes we novices as they fear their fave film will in fade away

[maltfalc]

Im only at page 250 or so of the thread, trying to catch up. I hear people mentioning 200 even, but I haven’t seen anyone talk about hr-U specifically, I think.

The zz medical site says hr-u is green, but the spec sheet says “orthochromatic” implying it’s green blue, if I understand it right.

The blue one is rx-n and it’s called “full speed” whatever that means.

I’ll try 100, 50, and 25 iso without the filter, and then as the other comment suggests, essentially iso 3 with a yellow filter. I’m using a 2 yellow 8 which is a mild yellow, typically 2/3 a stop

hr-u replaced hr-t at some point if that helps, basically the same. x-ray films come in "green" or "blue" versions for use with green or blue x-ray phosphor screens. blue is plain silver halides, so uv-violet-blue sensitive. green trades about half that sensitivity for sensitivity to cyan-green-yellow (mostly green), so it's orthochromatic. fuji colour codes their boxes green or blue. i've never used rx-n, but i would expect it to be much darker than green hr-u if you're using a yellow filter.

[Edison]

hr-u replaced hr-t at some point if that helps, basically the same. x-ray films come in "green" or "blue" versions for use with green or blue x-ray phosphor screens. blue is plain silver halides, so uv-violet-blue sensitive. green trades about half that sensitivity for sensitivity to cyan-green-yellow (mostly green), so it's orthochromatic. fuji colour codes their boxes green or blue. i've never used rx-n, but i would expect it to be much darker than green hr-u if you're using a yellow filter.

RX-N is what I started with and I set my meter to 16iso and meter for zone 3. I’m not happy with my highlights so I’m going to Keep experimenting with d76. It seems like almost nobody uses d76 so far (up to 258). Rx-n:

I can’t wait to go out tomorrow and test more.

Edit: using a yellow filter

[Roberto Nania]

The problem with D76 is that Kodak raised the price dramatically. It was 4€ for the to make-1l powder few years ago, now it is around 8€...
And I really like D76 over HC110.