Other than the IR capabilities, what do you all think about HR-50 vs good old Ilford Pan F+? I'm about to get a bulk roll, and am debating which to get.
I have been using Pan F+ for a while, and get consistently good results with Adox FX-39 II (1+9) or Clayton F76.
I only tried HR-50 once, with same FX-39 II, but find the contrast a bit harsher than Pan F+.
With HR-50 delicacy is the watch word even if it can be developed successfully in many developers, unlike other copy films. With FX-39 swish the developer gently in the tank and absolutely do not over-fix to avoid bleaching, I generally use a 1.45 min fix in Ilford Rapid but after a clearing test on the film leader.
I only use cheap beer. It does smell like stale beer but not overpowering. My recipe is here in my Flickr Beerenol group. Beerenol
Perhaps you can push the film a stop or two using a good I P A beer!
LOL
Other than the IR capabilities, what do you all think about HR-50 vs good old Ilford Pan F+? I'm about to get a bulk roll, and am debating which to get.
I have been using Pan F+ for a while, and get consistently good results with Adox FX-39 II (1+9) or Clayton F76.
I only tried HR-50 once, with same FX-39 II, but find the contrast a bit harsher than Pan F+.
My recommendation: Start your fill-in flash tests with a flash power with minus two stop manual reduction. Look at the results, and if necessary, adjust the manual power reduction for more, or for less shadow detail. Just as you like it.
The results with modern fill-in flash systems with manually reduced flash power look so natural and well balanced that in most cases a viewer cannot recognise that a flash was used.
With HR-50 delicacy is the watch word even if it can be developed successfully in many developers, unlike other copy films. With FX-39 swish the developer gently in the tank and absolutely do not over-fix to avoid bleaching, I generally use a 1.45 min fix in Ilford Rapid but after a clearing test on the film leader.
If I develop several rolls of different film (HR-50, Pan F+, Rollei XRP 25) in one tank, will the reduced fixing time (e.g. 1.45 min suggested here instead of my usual 5 min) have any negative effect on other film?
I just did the practical test with Ilford Rapid fixer (1+4 dilution, not fresh, already used 16 out of 24 roll capacity). 3.5 min fixing at 68F:
- Adox HR-50: perfectly fixed, film base clear and transparent without any color
- Rollei RPX 25: perfect, same as above
- Ilford Pan F+ 50: slightly pink tint, but well fixed as usual
I used Adox FX-39 II 1+9 dilution, 7 min at 68F with very gentle inversion.Their contrast level is from highest in Adox HR-50 to lowest in Pan F+. Rollei is quite close to Adox.
I need to scan them to find out the sharpness and resolution.
If I develop several rolls of different film (HR-50, Pan F+, Rollei XRP 25) in one tank, will the reduced fixing time (e.g. 1.45 min suggested here instead of my usual 5 min) have any negative effect on other film?
I think you'd risk under-fixing other films. HR-50 has a very thin emulsion hence the short fixing time (also like CMS20).
But HR-50 has a very clear and visible advantage here: Enlargements from HR-50 35mm film often rival enlargements of classic emulsion films in medium format (4.5x6, 6x6).
You get a kind of 'medium-format-quality' with 35mm HR-50 / SCALA 50 concerning detail rendition.
And you get that quality at really very fair and attractive prices. ADOX has furtunately not followed KA's policy of very high price increases.
The price-performance ratio of HR-50 / SCALA 50 is really very outstanding.
Alan,I am in the process of finding a development time for this film in PC-512 Borax developer and noticed that on enlargements to 16 in wide on a computer screen, tiny white dots a fraction of a mm across can be made visible with HR-50. At EI=25 they are virtually invisible, at EI=50 slightly noticeable if look for them and at EI=80 quite noticeable. I don't think this is a property of the developer as it has been noticed with a completely different developer at EI=100 with Aviphot 80. So for this film which has a higher resolution than T-Max or Delta 100 there may be a downside too, some may consider not good for big enlargements with exposures at higher than box speed.
Alan,
Were the white dots with using PC-512? That is a strange EI related thing and never remember hearing anything like that before. Did you get that with any other developer that you tried?
Where did you get your view that this film (for aerial surveillance )has a very thin emulsion like CMS 20 II (document film)?
I do not recall any suggestions from other sources that Aviphot 80 and its derivatives require less than normal fixing.
Maybe your claim refers only to the case where the fixer has been tested for clearing time before use.
Thanks for jolting my memory Alan as I now have went back and read that whole thread with interest. I never got around to trying your MeCD4 or my MeCD2. Might be worth a try, but I'm wrapped up in BTTB and a couple other developers for HR-50 at the moment. I am going to order another bottle of FX-39II to try with this film since my old bottle is past its prime I'm afraid.This is the example I recall. It is a pretty high magnification.Developer for Aviphot Pan 200
Here is one of the tests. Carbonate produced slightly higher emulsion speed. At first glance it looks more significant than it is, but you can see a significant portion of the density increase is just more fog, which is to be expected. When I high pH is used for bath B, a formula typically will...www.photrio.com
Alan,I am posting 30mpx jpegs to Flickr Pro which may have more detail than most Internet images so many may not notice the spots.
MeCD4 was superseded by CD4-LC which is easier to use.
After reading this thread and watching Andy's video, I'm intrigued by this film. I love the way it reacts to the different color filters and its infrared capabilities. I'm getting back to using 35mm film and ordered a hundred foot roll from freestyle and it arrived a couple of days ago. I don't know whether I'll get a lot of use with this film until spring although I will run some development test before I start to use this film in earnest. I have three developers that I'll try, DDX, HC-110 and Rodinal, any suggestions?
I don't know much about HR-50 and DDX, but I think both Rodinal and HC-110 used at very high dilutions should get close to where you want to go. Do a search here and Google for HR-50 developed in both those developers. I'm sure you'll find suggestions as to dilution and times.
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