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Limited extension of enlarger


wieslaw1

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My 4x5 Beseler does not allow to make 20x24 enlargements with a 135 mm

lens.. The extension is not sufficient and I hate to cut a hole in

the base-board.

Likewise, projecting an image on the wall is impractical.

 

In this case I decided to use a 120mm taking lens by Schneider as an

enlarging lens. I just purched one, but did not received it yet to

experiment.

 

Any comments?

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Kind of interesting, as I can make 20x24's with a 150mm. Anyway, I doubt the 120mm will

work very well. Friends of mine have had problems with vignetting with the 135, so the

increased angle of view might present a problem in that regard(light doesn't cover at

increased angle). I assume you are talking about the use of the 135mm and a 4x5 negative?

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Have you considered taking the wood baseboard out of the metal frame rather than cutting it? If I remember correctly, you can remove the wood portion of the baseboard from it's metal frame, move the enlarger to the edge of the table, and then project onto the floor. Stability might be an issue so use your best judgement...

 

- Randy

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Thanks for your input. For some reason I have not thought about

extending the steel frame. It is possible, but would require

making of 4 pieces of metal profile. Quite time consuming with

an access to a well equiped metal shop. (Which I have).

 

Projecting beyond the base, on the floor � this I could do with a

smaller Krokus enlargement, but here the shaft could be rotated

on the base. All you needed was to put a counterweight.

 

Lets see what the 120mm will do. I do not see a reason for

vignetting. This lens covers more than 4x5 area. All I need is to

reverse it.

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  • 1 month later...

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