john_porter1 Posted January 26, 2003 Share Posted January 26, 2003 I recently purchased a 5x7 Omega autofocus enlarger and I have a few questions I'm sure somebody can help me out with. The focus track I have is for a 190mm enalrging lens and I have a 210mm lens. After a night of messing around I figured I'd better get in touch with Harry at classic enlargers. Harry informed me that I would need a 210mm focusing track for the enlarger to work right. What he wasnt sure about was the size of the lens cone. Harry mentioned about an add on focus bellows for a $150 but I was curious if any users of this enlarger use a 210 and if so what size lens cone they use. I have tried to operate this enlarger manually but have found that it is quite a pain because of the focusing bellows are very tricky to operate it can be done but man it is a pain. I have the orignal 190mm lens on the way but I would really like to use the 210 Rodenstock Rodagon over the 190mm wollensk. Which brings up another question of what kind of image quaily difference might I see if any. I will be enlarging 5x7 negatives to a max of about 16x20 with an average of 11x14. Any helpful info would be great. Link to comment Share on other sites More sharing options...
jnanian Posted January 26, 2003 Share Posted January 26, 2003 hi john i don't have any of the focusing cones for either my E4, or my D3V. i just use the aux focusing bellows. that way you don't need to get any of the tracks or cones, you can just use what have. good luck! john Link to comment Share on other sites More sharing options...
jnanian Posted January 26, 2003 Share Posted January 26, 2003 sorry john, i mis-spoke ...i have a bellows-cone and i use it with several of the tracks ...it shouldn't too hard to get the right extension with the bellows, and fine tune it with the "fine tuning" focus-knob.it is a good idea to have the cones and tracks, i decided to cut corners when i started to use the aux-bellows-cone, so i wouldn't have to get all the different cones ( i use both a 150mm and 135mm on the D3V, and a 210mm on the E4). i can't comment on the look/image quality for the 210mm over the190mm. sorry for the confusing answer before .. best of luck john Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted January 27, 2003 Share Posted January 27, 2003 We used a 210mm Componon on a Durst 138S for over a decade. Link to comment Share on other sites More sharing options...
chauncey_walden Posted January 27, 2003 Share Posted January 27, 2003 Hi John, On my Automega E5 I made a special cone up for my 180 APO-Rodagon. It's about 4 inches long and larger in diameter than the slide-in slot will allow so I had to put a waist on it. A smaller cone may mechanically vignette. This will allow the lens to focus at max extension but only if I move the tracking wheel off the rail. The max enlargement at this point is the 20 inch length of a 16x20 on the baseboard. Had I made the cone 5 inches or more, I could focus it with the wheel on a rail. My favorite lens on the enlarger is a 150 EL-Nikkor which is on an auxiliary bellows focusing slide-in. This lens permits 20x24's on the baseboard. Good luck. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now