Who are we?  Featured Cameras  Articles  Instruction Manuals  Repair Manuals  The Classic Camera Repair Forum  Books  View/Sign Guestbook

Konica C35 crooked filter ring Log in | Log Out | Topics | Search
Moderators | Register | Edit Profile

Classic Camera Repair » Archives-2008 » Konica C35 crooked filter ring « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Bomobob
Tinkerer
Username: Bomobob

Post Number: 22
Registered: 10-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Tuesday, February 12, 2008 - 02:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hi,

I picked up a C35 last night which appears to work very well, but has one bothersome issue. As you can see from the photo, the chrome filter ring has been bashed/pressed and is now quite crooked. (I know it looks here like the focus ring is crooked, but it's an optical (ha-ha) illusion). It really is the chrome filter ring that is out of whack.
Yikes
The lens is straight and moves normal to the body. The rangefinder works and the distance seems good. Focus is nice and smooth with no binding.
Shutter works great, meter is accurate compared to other cameras.

Is this worth disassembling the lens for, or would you just live with it?
And further, how is this filter ring attached to the rest of the lens? Is it just threaded in? I'm assuming this camera was dropped or banged at some point, so I'm just concerned it might be a symptom of something else.

Thanks,
Bob
Top of pagePrevious messageNext messageBottom of page Link to this message

Wernerjb
Tinkerer
Username: Wernerjb

Post Number: 257
Registered: 07-2006

Rating: N/A
Votes: 0 (Vote!)

Posted on Saturday, February 16, 2008 - 02:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hi Bob, a while ago I reshaped the filter "ring" (it is in fact more than just a ring) on a Konica and also on an Oly RC which are both similar in that respect. I hope I can find my notes concerning realigning infinity focus, aperture coupling in flash mode, etc.(this will perhaps take a few days) and then be able to give you some more advice on what to do when I find them, W.
Top of pagePrevious messageNext messageBottom of page Link to this message

Wernerjb
Tinkerer
Username: Wernerjb

Post Number: 259
Registered: 07-2006

Rating: N/A
Votes: 0 (Vote!)

Posted on Sunday, February 17, 2008 - 08:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hi Bob, it is a lot easier! Just unscrew the two-notched ring in the filter thread and the name plate ring can be removed. After desoldering the two black wires to the CdS-cell the filter "ring " can be disassembled (three black crosshead screws), and that's that. Straightening it follows the usual routine (flat surface and a light hammer, a suitable piece of hard wood for its bottom, a cut-to-measure piece of plastic - the stem of a toothbrush is fine - and a semicircular cutout in a piece of wood for the filter thread like shown here: https://kyp.hauslendale.com/classics/filterringtool.html), good luck, W.
Top of pagePrevious messageNext messageBottom of page Link to this message

Bomobob
Tinkerer
Username: Bomobob

Post Number: 23
Registered: 10-2007

Rating: N/A
Votes: 0 (Vote!)

Posted on Monday, February 18, 2008 - 07:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hi Werner, and thanks,

I actually did figure it out. The "ring" is actually an aluminium cup mounted on 3 standoffs. Once I removed the CdS cell donut, I could see the cup had been bashed head on, and was squashed down over one of the standoffs. I removed it, straightened it out, and it's like new now.
Actually a pretty smart design, as the cup protrudes beyond anything else, and will absorb shock. It must have taken a good hit to bend in like that, but the rest of the camera is fine.
Bob

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Password:
Options: Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Last Week | Tree View | Search | User List | Help/Instructions | Program Credits Administration