G-Claron 355mm Dagor Type

[Thierry Schreiner]

Hi to all,

2 questions, please:

What dimension is the filter thread on the G-Claron 355mm Dagor type are?

Can someone with user experience comment on this lens?


Thank you in advance for you help & best regards

Thierry Schreiner

[Dave_B]

Hi to all,

2 questions, please:

What dimension is the filter thread on the G-Claron 355mm Dagor type are?

Can someone with user experience comment on this lens?


Thank you in advance for you help & best regards

Thierry Schreiner

Thierry:
Use the search feature on this forum. You will find people love this lens as do I. The filter thread is 77mm.
Cheers,
Dave B.

[Thierry Schreiner]

Dave,

Thank's a lot for your reply, but the first type of the G-Claron was of Dagor design with 6 lenses in 2 groups, and I guess it has a smaller thread than the late 355 G-Claron, which I actually have and is one of the best lenses I have used.

Attached are the Schneider Kreuznach archives.

The 355mm G-Claron is listed as being in preparation, but the filter thread is not mentioned.

http://www.schneiderkreuznach.com/ar...f/g_claron.pdf


Best regards

Thierry

[neil poulsen]

I don't have one, nor have I used one. But, I've read quite a bit about this lens, and I'm inteested in getting one myself. (Someday.)

It's a plasmet design, which is pretty standard modern among large format lenses of this focal length.

It's capable of quite a large image circle for this focal length. There was something about the manufacture of the G-Clarons that gave them this advantage. The data published at the Schneider website will somewhat underestimage the image circle that's capable of this lens.

It's single-coated. (Sometimes you'll see references that it was multi-coated, for example, older Calumet catalogs. But, that's not the case. It was intended for interior use, and multi-coating was deemed unnecessary.)

It's was designed for closer work, versus infinity. But stopped down, it performs quite well at infinity.

People like this lens for 8x10, because of it's small size, and because of its rather large image circle.

[Thierry Schreiner]

Neil,

Thank's a lot for the info.

But my question refers to the Dagor design G-Claron, not the Plasmat design, which was developed later.

I have a late 355mm G-Claron, which performs great, .... never ending image circle, .... outstanding sharpness, almost all you can ask from a lens. The only lens I will definitely never trade in. But huge, and a pity it doesn't have a larger aperture.

So my 2 questions:

What is the filter dimension of the Dagor type 350mm G-Claron?

Does the image quality from the Dagor design lens differ from the later Plasmat design, and is there any noticeable difference in image quality?


Thank you and best regards

Thierry

[neil poulsen]

Oops. I missed that. Don't know nothin' 'bout that.

[Ernest Purdum]

The filter thread is M 67 by 0.75 thread pitch. This is one of the easier ways to distinguish between the two types.

[Thierry Schreiner]

Ernest,

Thank's a lot for the info. This helps.

Best regards from France

Thierry

[Really Big Cameras]

Theirry,

According to Jim Galli, there was no Dagor-type G Claron in the 355mm focal length. In this post on APUG, Jim states that the older 355mm G Claron with the 67mm filter threads is a plasmat with slightly less coverage than the newer version with the 77mm filter threads.

Kerry Thalmann
Really Big Cameras

[Dan Fromm]

Kerry, I'm afraid that like you and me Jim is sometimes mistaken. Look at this http://www.schneiderkreuznach.com/ar...f/g_claron.pdf.

Write "I will not use secondary sources when the primary source is at hand" one hundred times.