80mm f/4 Componon-S for 6x7?

[alroldan12]

Hello everyone,

I just wantred to ask if anyone here enlarges 6x7 negatives with an 80mm lens without problems. I recently purchased a Rodenstock Rodagon 105mm on ebay, but I'm afraid I'll have to return it. Since these are hard to find used and in good shape, I was thinking about using my Schneider 80mm f/4 Componon-S until I find a good 90, 100, or 105mm. Any thoughts?

Thanks!


Axel

 

[David Brown]

An 80mm should work fine.

 

[fotch]

I would use at least a 90mm or larger. Of course, if you only have an 80mm, make do.

 

[danegermouse]

i have used the 80mm f5.6 componon-s and it is a bit soft on the extremities of the long side on 6x7. i would recommend at least 90mm but maybe the f/4 is different. it is at least usable til you find a longer lens, only a minimal crop will eliminate any problems in the interim

 

[Rick A]

The 80 will just get you by at smaller enlargments, but most likely you will see fall-off at the corners when you go larger than 8x10. You may even notice the corners darkening at 8x10. Whats the problem with the 105 from fleecebay?

 

[alroldan12]

Hi Rick,

It looked promising in the pictures (E+ condition, low price, etc.). I got it today at work and as soon as I saw it I could tell it was not in E+ cond., the front element had more than "the lightest cleaning marks" and the mount was damaged. I accidentally dropped one of my lenses once, it fell on the enlarger's baseboard, and the damage on mine looked exactly like the one on this Rodagon, of course you can't see it in the pictures. Here's the link to the auction:

http://cgi.ebay.com/ws/eBayISAPI.dl...300389&ssPageName=STRK:MEWNX:IT#ht_500wt_1182

Thanks everyone for your answers,

Axel

 

[ic-racer]

I was thinking about using my Schneider 80mm f/4 Componon-S until I find a good 90, 100, or 105mm. Any thoughts?

Thanks!


Axel

Don't stop printing, just make small prints with your 80mm while you are looking for the longer lens.

 

[Ed Sawyer]

I would think the 80 would work fine.

Check the manufacturer's website. Not sure on the Componon but at least for the Rodenstock Apo Rodagon N 80mm f/4, they rate it for 6x7 use. the 105 they say is for up to 6x9. I think the more recent lenses have slightly more coverage than the older ones, to wit, Rodenstock discontinued the 90mm in favor of the 80mm, but rated the 80 for the same coverage as the 90.

FWIW
-Ed

 

[RobertV]

Rodenstock Rodagon 4,0/80mm is specified till 6x7cm. Schneider equivalent to 6x6cm. You can also use 90mm.

I am using the Rodenstock 80mm for 6x7cm on a Dunco II 67 enlarger without any problems.
I have still one extra left on stock, second hand in good shape.

 

[Ian Grant]

The 80 will just get you by at smaller enlargments, but most likely you will see fall-off at the corners when you go larger than 8x10. You may even notice the corners darkening at 8x10. Whats the problem with the 105 from fleecebay?

The 80mm Componon S is fine with 6x7 even for large enlargements there's no corner issues with mine, Schneider have always been conservative in the coverage of all their lenses.

Ian

 

[ricksplace]

I use a componon 80/5.6 and it covers 6X7 perfectly. I usually print at f8-f11. It may not cover at wider apertures. Dunno, never tried it.

 

[alroldan12]

I just wanted to post a quick update. Last night I worked in the darkroom making enlargments from my 6x7 negatives for the first time using the 80mm componon-s. I had absolutelly no problems making 11x14's with almost no cropping. I am glad I won't need an extra lens to print from 6x7 negatives, the 80mm componon-s does cover this format.

Thanks again everyone for your answers!

Axel

 

[hoffy]

Hi all,

Sorry to kind of hijack this thread a bit. I have an El-Nikkor 75mm (which I am assuming is a 4 element lens), which came with the enlarger kit I bought earlier in the year. From what I have read here (& elsewhere), I might be struggling a bit with this lens and processing 6x7 negs. Would this be correct? Would I be OK (to get myself going while I find the right lens) if I limited myself to printing no bigger then 8x10?

Also, from what I have read here, 90mm would be a good starting point (or 80 for a quality lens). What would be the largest focal length I would want to go for, considering I will be using it on a 6x7 max enlarger (LPL C7700)

Any advice welcome!

Cheers

 

[Rick A]

Should be okay enough, just watch the corners of the enlargment for light fall off or vignetting. Stay to the smaller apertures, and you should be good, you might see the corners darkening at larger settings. A good quality 80mm or 90mm will take care of 6x7 format, tho I prefer 90mm for that (I use 90mm for 6x6) I have both a Rodenstock 90 and a Schneider 80mm, prefer the Roddy(maybe because I've had it for years longer than the Schneider and I'm used to it).

 

[hoffy]

Cheers for that. I have a Rodenstock 50 F2.8 and am well impressed with that lens, so a 90 Roddy sounds like a plan.

With the El-Nikkor, I'll give it a shot. I still need to get or make a neg holder for 6x7. Once I do, I'll do some testing.

Cheers