A few jobo hypo mas dev questions

Light, film, exposure..
Andrew Nichols
Posts: 181
Joined: 11 Dec 2012, 17:19

A few jobo hypo mas dev questions

Postby Andrew Nichols » 22 Dec 2012, 23:38

I'm using mass dev app
And the times are good and all
But is its default timing for tray or jobo
And how to adjust accordingly.

How much hypo to use in jobo
Is it reusable.

Do you use jobo for final ten minute wash or tray or both.

I'm using hp5 tmax dev.

Many thanks

A.

L2obin
Posts: 116
Joined: 18 Oct 2012, 00:56

Re: A few jobo hypo mas dev questions

Postby L2obin » 23 Dec 2012, 09:30

I do my washes in the jobo. I do not use hypo. I wash my film a following with 1 L of water for each step

1x30s
3-4x 5m

All steps constant agitation

Andrew Nichols
Posts: 181
Joined: 11 Dec 2012, 17:19

Re: A few jobo hypo mas dev questions

Postby Andrew Nichols » 23 Dec 2012, 11:01

Not sure what those figures stand for

User avatar
Alastair Moore
Site Admin
Posts: 668
Joined: 26 Jul 2012, 09:29
Location: Darwin, Australia
Contact:

Re: A few jobo hypo mas dev questions

Postby Alastair Moore » 23 Dec 2012, 18:20

I'm guessing 1 wash at 30 seconds and then 3-4 washes at 5 minutes each.

L2obin
Posts: 116
Joined: 18 Oct 2012, 00:56

Re: A few jobo hypo mas dev questions

Postby L2obin » 12 Jan 2013, 22:56

Correct Alastair. Water volume of 1L.

Lachlan717
Posts: 494
Joined: 03 Aug 2012, 16:49

Re: A few jobo hypo mas dev questions

Postby Lachlan717 » 13 Jan 2013, 06:37

I actually have no idea what Hypo is. I've often read its name, but never bothered to work out what it is.

I tend to run heaps of fresh water over my negs. Not heaps in terms of volume, nor time. I'll put at least 10 of the Jobo bottles (600ml?) through the system, leaving them in for a minute or so each flush.

I figure that there is more benefit in exchanging/refreshing the wash more frequently, rather than letting the film roll around in left over chemicals. No scientific backup for this, just shooing from the hip.

One final thing that I do: I squirt Photoflo over the hanging film using an atomiser. I don't like to potentially contaminate my tanks with this stuff, based on annecdotal reports of it being difficult to completely clean off/out.

smbooth
Posts: 405
Joined: 29 Jul 2012, 00:20

Re: A few jobo hypo mas dev questions

Postby smbooth » 13 Jan 2013, 08:42

Hypo if I remember correctly is what fixer use to be called before rapid fixers came out. What the OP is referring to I assume is hypo clearing bath to remove left over fixer more efficiently than plain water.

Oscar
Site Admin
Posts: 56
Joined: 19 Nov 2012, 10:39
Location: Adelaide

Re: A few jobo hypo mas dev questions

Postby Oscar » 13 Jan 2013, 08:59

smbooth wrote:Hypo if I remember correctly is what fixer use to be called before rapid fixers came out. What the OP is referring to I assume is hypo clearing bath to remove left over fixer more efficiently than plain water.

That's right.

Although I don't bother using hypo clear for negatives, it's not a big gain. However it makes a very big difference when making fibre prints; you need to wash for MUCH longer if you don't use hypo clear.

Andrew Nichols
Posts: 181
Joined: 11 Dec 2012, 17:19

Re: A few jobo hypo mas dev questions

Postby Andrew Nichols » 13 Jan 2013, 11:04

Good to know re prints/hypo.

Hypo clear @ Lachlan

I will write to mas dev chart app peeps!
And find out.

For such an exhaustive app they missed out on differing dev techniques.
So what are there times for ????
Strange.

Andrew Nichols
Posts: 181
Joined: 11 Dec 2012, 17:19

Re: A few jobo hypo mas dev questions

Postby Andrew Nichols » 13 Jan 2013, 11:19

Ps according to gold street studio
Research suggests letting sit in water is better than running water

Obviously volume and frequency of change is the question.

I can't remember what it was.


Return to “The Negative”

Who is online

Users browsing this forum: No registered users and 1 guest

cron