Jobo 2509-N: 6 sheets or only 4?

[Lachlan 717]

I'd like to get Users' opinion on whether it is better to only load 4 sheets, rather than the maximum 6, per development with the Jobo 2509-N drum.

I have seen mention of getting more consistent results with only 4; 2 on the inner most track and 2 on the outer most.

This question is specifically in relation to constant, machine agitation.

Thanks in advance,

[Eric Brody]

When I used the 2509, I used just four, never tested it to see the difference, if any.

[Daniel Stone]

I've just used 4, even Jobo recommends 4 instead of 6 .

a friend told me about how some of his film stuck together when he processed 6 sheets together at a time, didn't turn out so well .

stick with 4 IMO

-Dan

[Lachlan 717]

I've just used 4, even Jobo recommends 4 instead of 6 .

a friend told me about how some of his film stuck together when he processed 6 sheets together at a time, didn't turn out so well .

stick with 4 IMO

-Dan

A bird in the cab is worth 2 in the bar?

Looks like 4 it will be.

Thanks, guys.

[Jlentz]

I've always used 6 with B&W. Never had any problems.

[dave_whatever]

From what I've read the old wives tale about only using 4 sheets was based on the original 2509 reel, NOT the current redesigned 2509N reel with the extra side baffle pieces. Hence I've done 6 sheets of E6 in mine with no problems.

[BradS]

From what I've read the old wives tale about only using 4 sheets was based on the original 2509 reel, NOT the current redesigned 2509N reel with the extra side baffle pieces. Hence I've done 6 sheets of E6 in mine with no problems.

This is the fact. The instructions that come with the new 2509N reels say nothing about using only four. The black plastic 'V' shaped thingies correct the issue. If you do not use the black thingies, then only do four. If you have only four sheets to process...do only four. If you have six...do all six and use the black plastic things. It just works.

I've run several hundred sheets of 4x5 though my 2531/2509N tank and have never had a problem related to development. The loader base thingie is also indespensible IMO. I cannot imagine using this reel with out the loader base....but, some apparently are able to load it without...I haven't that much skill or patience.

EDIT: I always do six sheets at a time, use the black baffles and use 400ml of chemistry

[domaz]

I've run several hundred sheets of 4x5 though my 2531/2509N tank and have never had a problem related to development. The loader base thingie is also indespensible IMO. I cannot imagine using this reel with out the loader base....but, some apparently are able to load it without...I haven't that much skill or patience.

EDIT: I always do six sheets at a time, use the black baffles and use 400ml of chemistry

I can load the 2509 without a loader faster than a roll of 120 or 35mm. It's just a matter of getting a feel for it and learning to bend the film at the right angle.

[BradS]

I can load the 2509 without a loader faster than a roll of 120 or 35mm. It's just a matter of getting a feel for it and learning to bend the film at the right angle.

Like I said...some people can....I cannot.

[georg s]

No problems here so far with 6 sheets of 9x12cm or 4x5 in the 2509n (black baffles attached) with rotary processing (B&W only).