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Meopta Opemus 6 query

hoganlia

Member
Joined
Jan 25, 2023
Messages
150
Location
Spain
Format
Medium Format
Good afternoon to one and all. I am currently investigating methods of enlarging; taking a 5x7 to an 8x10 and then, hopefully larger. I have found a few methods which I tried over the weekend on two prints that got close, but not what I had expected. So far.

I will continue my research, although if anyone has a magic wand... don't hesitate to flash it in my direction.

One thing on the Meopta Opemus 6 that I haven't fathomed yet is the graduated numerical table on the block of the elevation mechanism on the enlarger itself. I have no idea what it is.

Any help on this would be most welcome. In fact any help at all would be most welcome.

Cheers to all

Joe.
 
I am already printing with the enlarger but I would like to know just what the table refers to and how I can use it to assist my printing. I don't know if it has anything to do with making adjustments for enlarging my photos or is simply a guide.
 
I think it tells you the required height for a given focal length and desired enlargement factor.
 
Yep that what it is, I have one on by my Opemus and LP 7500. I never use it, never found a need.
 
First column is magnification (X), then lens you are using 80mm, 50mm and 30mm lens, numbers bellow (on black background) are required hight of enlarger head that corresponds with numbers engraved on enlarger column.
So, you are using 35mm negative (24x36mm) with 50mm lens and want to enlarge it to 24cm, that is 6.666X enlargement and you need to raise enlarger head between 16-21.
It also tells you that with 6x6 and 80mm lens you can have max enlargement of 7.6x, or 42.5cm at 53 height and with 35 mm film, 50mm lens, 13x or 46.8cm at 52
 
Paul Howell said:
Yep that what it is, I have one on by my Opemus and LP 7500. I never use it, never found a need.
Click to expand...
We have a saying in Catalonia: never go to bed without learning something new. This time it was reversed... I woke up this morning and learned something new as soon as I did
 
Thanks so much for the detailed explanation... something new to get my head around. Probably useful initially to get me to the height and from there I and do that may ratios and adjustment factor for the time will be more accurate. Much appreciated my friend.
 
Life in the darkroom is challenging and frustrating at times, but I am loving it. (And slowly, slowly getting there)
Thanks for your help and advice.
 
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