Need mamiya sekor 55mm lens cleaning help

TheGreatGasMaskMan · May 15, 2019

So I accidentally knocked my valuable and beloved mamiya sekor 55mm lens into a puddle while taking off my sweatshirt. and of course there's now water droplets on the inside of the lens. can anyone point me to some tutorials on how to open/clear out the water? I'm also going to call my camera shop at some point to see if they can clean it for me.

jim10219 · May 15, 2019

Are you talking about the one for the 35mm SLRs, the one for the 120 TLRs, the one for the RB/RZ67s, the one for the 645AF, or what? Mamiya made a lot of 55mm lenses, and some are easier to work on than others.

TheGreatGasMaskMan · May 15, 2019

jim10219 said:
Are you talking about the one for the 35mm SLRs, the one for the 120 TLRs, the one for the RB/RZ67s, the one for the 645AF, or what? Mamiya made a lot of 55mm lenses, and some are easier to work on than others.

one for the medium format TLRs.
Mamiya sekor 1:4.5 f55mm no. 64680

Luckless · May 15, 2019

Depending on where the drops are, you may be able to simply unscrew the lens elements from the shutter body to gain access to the rear of the cell.

However, be warned that there are usually small shim rings that may be difficult to see at first. [I would suggest not taking more than one cell off at a time if you're not trying to get into the shutter assembly itself - You can't be stuck asking "Which lens part did that just fall off of..." if you only ever have one open at a time.]

TheGreatGasMaskMan · May 15, 2019

Luckless said:
Depending on where the drops are, you may be able to simply unscrew the lens elements from the shutter body to gain access to the rear of the cell.

However, be warned that there are usually small shim rings that may be difficult to see at first. [I would suggest not taking more than one cell off at a time if you're not trying to get into the shutter assembly itself - You can't be stuck asking "Which lens part did that just fall off of..." if you only ever have one open at a time.]

Thank you, the drops are only on the bottom lens, so I'm not going to have to disassemble both.

TheGreatGasMaskMan · May 15, 2019

my dad suggested dry rice- I'll try this then potentially take the lens apart

KN4SMF · May 15, 2019

I'd take it apart, yesterday.

Kino · May 16, 2019

These notes might be of help:

https://www.dpreview.com/forums/thread/2944339

https://www.photo.net/discuss/threads/mamiya-c330-lens-repair.5511489/

Need mamiya sekor 55mm lens cleaning help

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