developing HP5 in T-Max chem?

U10...@uicvm.uic.edu

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Apr 7, 1991, 2:14:29 PM4/7/91

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can I develop Ilford HP5 film in T-max developer w/o any negative effects?

if yes, would anyone know the times for 400 exposure?

also on the side: are there any major differences between Tri-X and HP-5?

thanks in advance,

ed d. (U10...@UICVM.CC.UIC.EDU)

donl mathis

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Apr 9, 1991, 9:11:06 PM4/9/91

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In article <91097.131...@uicvm.uic.edu>, U10...@uicvm.uic.edu writes:

> can I develop Ilford HP5 film in T-max developer w/o any negative effects?

Oh, sure, right!

"Without any negative effects!"

You've GOT to be kidding! :)

- donl mathis at Silicon Graphics Computer Systems, Mountain View, CA
do...@sgi.com

"Pay no attention to that man behind the curtain!"

Ian G Batten

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Apr 11, 1991, 4:39:03 AM4/11/91

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In article <91097.131...@uicvm.uic.edu> U10...@uicvm.uic.edu writes:
> can I develop Ilford HP5 film in T-max developer w/o any negative effects?

Yes. HP5+ actually has the times in the instructions, which I will post
tomorrow. My recollection is that it's 7 minutes at 400ASA, but PLEASE
wait until I post the right value.

I've done it a few times and the results are excellent. I'm currently
using T-MAX to process T-MAX (100, 400, 3200), FP4 and HP5. ID-11 is
better for FP4, but for HP5 TMAX is very good. The accutance is at
least as good as ID-11 and the grain structure is reasonably fine.

Has anyone used Ilford's new Delta?

ian

Ian G Batten

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Apr 12, 1991, 4:42:57 AM4/12/91

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In article <'`-_HR~@uzi-9mm.fulcrum.bt.co.uk> i...@fulcrum.bt.co.uk (Ian G Batten) writes:
> In article <91097.131...@uicvm.uic.edu> U10...@uicvm.uic.edu writes:
> > can I develop Ilford HP5 film in T-max developer w/o any negative effects?
>
> Yes. HP5+ actually has the times in the instructions, which I will post
> tomorrow. My recollection is that it's 7 minutes at 400ASA, but PLEASE
> wait until I post the right value.

HP5+ quotes the following times for developers. You can compare the
developers listed for HP5 to see the differences. The values for ID-11
are almost exactly the same between the two films, so I assume that
other developers will likewise be the same.

Min/20C(68F) 400 800 1600 3200
ID-11 Stock 7.5 10.5 14 -
Microphen Stock 6.5 8 11 16
IlfoTec HC 1+15 3.5 5 7.5 11
1+31 6.5 9.5 14 -
InfoTec LC29 1+9 3.5 5 7.5 11
1+19 6.5 9.5 14 -
1+29 9 - - -
IlfoSol S 1+9 7 8.5 14 -
Perceptol Stock 11 - - -

Sec/27C(81F)
IlfoTec RT Rapid 55 80 120 -

Min/20C(68F)
D-76 Stock 7.5 9.5 12.5 -
T-Max 1+4 6.5 8 9.5 11.5
Acufine Stock 4.5 6.5 9.5 -
Rodinal 1+25 6 8 - -

ian

Michael A. Covington

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Apr 10, 1991, 12:24:05 AM4/10/91

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My impression from brief tests has been that HP5 Plus and Tri-X Pan
are very similar (both are quite different from T-Max 400).

Some T-Max Developer development times
(all using the developer at 1:4, 75 F):

Plus-X Pan EI 125 5 min
Tri-X Pan EI 400 5.5 min
Ilford HP5 Plus 400 5 min <- the one you asked for
Fuji Neopan 400 400 4.5 min
Fuji Neopan 1600 1600 4 min
--
-------------------------------------------------------
Michael A. Covington | Artificial Intelligence Programs
The University of Georgia | Athens, GA 30602 U.S.A.
-------------------------------------------------------

Steve Rees

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Apr 15, 1991, 9:55:02 AM4/15/91

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Does anybody have anything to say about HP5+ in HC110? (I happen to have the
two of them laying around, and I was wondering if they could be used together.)

Thanks loads!
--
Steve Rees
{uunet|utzoo}!mnetor!steve or (better) steve%mneto...@uunet.uu.net
Ma Bell: +1 416 475 8980 ext. 322
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