BeeMan458 wrote:
What's a conversion running these days? Is this a $2k venture or a two hundred dollar venture? I have a Planar T* 85/1.4 and some cheap A$$ adapter that scares heck out of me. I wish to use the 85/1.4 on a 10D or when I pick one up, a FF like a 5D.

It sounds like you have the wrong 85mm Planar . Is it the autofocus Zeiss 85mm "N-Planar" that fit the Contax N1? This is the lens that the conversion is for, and it is not the same as the older manual focus Zeiss 85mm Planar that fit the RTS. Which do you have?

It's a Yashica/Contax mount, manual focus.

Why not contact this gentleman...he could at least be considered for the assembly, he makes ALL KINDS of custom stuff for the large-format crowd, his work speaks for itself:

http://skgrimes.com/index.htm

The contact block could be machined out of Lexan, and, some contact fingers from something else can reach over and down the side, and soldered into holes in the PCB.

Also...I'd call a bunch of camera shops that do repairs, retailers, the catalog guys, and, put WTB's out on FM here and DPR too and I bet you'll find your lenses quick-o-matic.

G.

BeeMan458 wrote:It's a Yashica/Contax mount, manual focus.

This conversion, then, is not for you. An adapter is the only way for you.

losloslos wrote:
Why not contact this gentleman...he could at least be considered for the assembly, he makes ALL KINDS of custom stuff for the large-format crowd, his work speaks for itself:

http://skgrimes.com/index.htm

The contact block could be machined out of Lexan, and, some contact fingers from something else can reach over and down the side, and soldered into holes in the PCB.

Grimes is good where machining and purely mechanical aspects of lenses, adapters and cameras are involved. They don't do much electrical stuff at all

Further, making the cobntact block out of Lexan as you suggest is all well and good, but on a small volume custom basis would be very expensive -- well over $100. The off-the-shelf Sigma part costs about $10 at retail from your service center. (In the volume that Sigma uses, it probably costs Sigma only about $1 to make.)

"An adapter is the only way for you."

Thanks!

I just called Sigma and ordered the parts needed for the conversion. They told me that they call it the "Contact Housing Assembly". They were $10 each, including shipping, and I paid for them on-line through their website. She told me that I could "have as many as I want" as long as I wasn't "ordering hundreds of them". She added, "We have a ton of them."

i am interested in the 17-35 but need a turnkey solution

if the 17-35 is in jeopardy? how about the 24-85? im really interested in the 24-85...

Taking a while.... but he is working on it - from my last communication with Conorus last week....

I have not given up on it yet... something this good takes time..... and it will be well worth the wait. I actually sold my 24-70L a couple weeks ago because I am confident it will work.

I am practicing my soldering technique right now . Haven't done it for 10 years.