Rodenstock 210mm APO Sironar-N Copal #0 vs Copal #1

From what I've read, the physical sizes of these two lens are different, 0 is smaller/lighter and 1 is bigger/heavier. Also the 0 has the fastest shutter speed of 1/500, 1 has fastest shutter speed for 1/400.

So is it safe to assume that Copal 0 is better? It's lighter and has faster shutter speed?

Will the copal size affect the image quality?

E

The 210 Sironar-N doesn't fit a Copal 0 shutter the cells are too large, it's only sold in a size #1 shutter Copal or Copal Press etc.

The Linos/Rodenstok data does give full details

Ian

Rinthe said:

From what I've read, the physical sizes of these two lens are different, 0 is smaller/lighter and 1 is bigger/heavier. Also the 0 has the fastest shutter speed of 1/500, 1 has fastest shutter speed for 1/400.

So is it safe to assume that Copal 0 is better? It's lighter and has faster shutter speed?

Will the copal size affect the image quality?

E

Click to expand...

Do you mean the APO-Sironar-S(!) instead of APO-Sironar-N? I don't see an APO version of the Sironar-N on the Rodenstock website:

http://www.rodenstock-photo.com/en/main/products/lenses-for-analog-photography/apo-sironar-s/

Also, the lens test list here, only lists a normal, non APO, 210 mm version of the Sironar-N:

http://www.hevanet.com/cperez/testing.html

which is consistent with my own Sironar-N F5.6 210 mm, that doesn't have an APO tag on the barrel. It has a Copal No.1 shutter.

It is not my most used lens, and the few times I used it, I was a bit disappointed with the sharpness compared to my other Schneider-Kreuznach lenses. This comes as no surprise though, as when you look at the above mentioned lens test, the 210 Sironar-N version does not score high points. The APO Sironar-S versions of the 210 mm lenses, do much better though.

Marco

The APO-Sironar-N line is now discontinued, so does not show on Rodenstock's site, but at one time they offered a complete lineup with both -N and -S designations. Both 210s were in Copal 1 shutters. The much rarer 210mm APO-Sironar-W was in a Copal 3.

The table here

http://www.prograf.ru/rodenstock/largeformat_en.html#table1

shows the whole line.

ok i guess copal #0 doesn't exist for this particular lens.

But I want to know if the copal # affects the image quality at all?

Rinthe said:

ok i guess copal #0 doesn't exist for this particular lens.

But I want to know if the copal # affects the image quality at all?

Click to expand...

No

The Shutter is positioned at or very close to the Nodal Point of the lens

The Glass Elements, their coatings and the quality of the light baffling of the Lens Barrel are the main players in optical quality.

Of course if you are looking at second hand pieces of glass, how much TLC or abuse your lens has seen makes a huge difference to its performance

Martin