12x20 Korona Rear Standard Box Allignment

Gary892 · May 22, 2006

I have a 12x20 Korona and I removed the worn out bellows and I am in the process of ordering a new bellows for it. I was cleaning the camera when I noticed the rear standard box was out of alignment. Facing the back of the camera, the right hand side is closer to the lens by about a 1/4 of an inch than the left hand side. I see no obvious bends or tweaks in the hardware that supports the rear standard box. This camera has rear swings so I can swing the back to align the back. I would like to know from the camera builders if there is a way to fix the alignment so I don't have the swing the camera back.

Thanks

Gary

Curt · May 22, 2006

Has it jumped the rack or have a clicking sound when focusing?

Gary892 · May 22, 2006

It did jump the track that controls the tilt. I removed that gearing to see how far out of alignment it is.

Gary

Donald Miller · May 22, 2006

I had a 12X20 Korona...and mine had a way to remove the back standard from the track and then align the gear engagement..

Curt · May 22, 2006

Yes this is common with these type cameras and the metal guides sometimes have to be adjusted but if the rack and pinon are all right then it is just a matter of care and adjustment. Richard Ritter can be of help if you need a professional to fix it but I have several Kodaks and Senecas I have adjusted and when they are working and adjusted right they work great.

Curt

reellis67 · May 22, 2006

My 4x5 was just like that when I first got it. I was able to roll the back off of the rail and then roll it back on with both sides aligned properly. No problems since then after many negatives.

- Randy

Gary892 · May 22, 2006

Let me bring this back on track (sorry for the pun). It is not a matter of the gearing jumping the track because I have removed the adjustment rod. The box appears to be slightly warped. I am interested in possible remedies. Do I need to remove the box and weight it down to straighten it out?

Sorry for the confusion.

Gary

Donald Miller · May 22, 2006

Gary892 said:
Let me bring this back on track (sorry for the pun). It is not a matter of the gearing jumping the track because I have removed the adjustment rod. The box appears to be slightly warped. I am interested in possible remedies. Do I need to remove the box and weight it down to straighten it out?

Sorry for the confusion.

Gary

That is strange...I have not heard of that before...I guess that I would place the back (alone) on a flat and substantially stable surface and slowly over days use clamps to try and straighten the back...

reellis67 · May 23, 2006

Ah, I see now. That is a problem. Repairing warped wood is tricky for those without a fair amount of experience, especialy with something that requires a certain amount of precision like a camera. I would suggest trying what Donald suggested, but I don't think that the wood will be able to be easily bent back. If the wood is warped then it was likely exposed to moisture and/or pressure and repairing it might involve having those pieces replaced if it is really bad. I would see if you can find a local woodworker's group and get the opinion of an experienced woodworker. The camera was built by hand by a craftsman, so who better to do the repair? Having it done commercialy would likely be very expensive, but taping a resource like a local craftsperson might fit the bill and result in a better fix. After all, there is no substitute for a lifetime of experience.

- Randy

Curt · May 23, 2006

Gary, could we see a picture of the back box frame? Is the wood warped or is the joinery? Can you see any swelling of the wood and what species is it?

Curt

Curt · May 23, 2006

I did a quick check and found this site of interest.

http://www.filmholders.com/rr.html

12x20 Korona Rear Standard Box Allignment

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