SMC-FA 80-320 diagram


Kim C

Link Posted 26/10/2007 - 17:30
Thanks Matt,
I will do it when I get time and run it past you before going "public".

Kim

MattMatic

Link Posted 29/10/2007 - 08:26
Quote:
You can just see it, can't you...

Cheeky
(Made me laugh though )


Kim - no probs
Matt
http://www.mattmatic.co.uk
(For gallery, tips and links)

ChrisA

Link Posted 29/10/2007 - 09:20
MattMatic wrote:
Quote:
You can just see it, can't you...

Cheeky

Not at all. It was intended purely as a light-hearted compliment.

As a forum, we should probably insure you.

MattMatic

Link Posted 29/10/2007 - 09:27
No probs Chris

I will add as a postscript... having tried to look at a Canon USM lens , I'm much more comfortable having a go at a Pentax lens

Oh, and while I'm at it too... some lenses you really need to be careful with. For example, the SMC-FA 24-90 has a comment in the service manual to the effect that you shouldn't attempt disassembly of one of the lens groups because serious adjustment would be needed.

And in future, I'll make sure I ask Pentax for a "Service Parts List" (it'll be a document starting with "PL", e.g. "PL41430" = SMC-FA 24-90) rather than mentioning that I wanted to disassemble the lens myself. It confused them no end

Matt
http://www.mattmatic.co.uk
(For gallery, tips and links)

ChrisA

Link Posted 30/10/2007 - 22:05
MattMatic wrote:
I'm much more comfortable having a go at a Pentax lens

Yeah, well. I had a go taking apart a Sigma A 28-200 manual focus zoom. I got it for almost nothing on eBay, but I was still a bit disappointed when about 4 days after it arrived, the aperture stuck open. Cosmetically it wasn't going to win any awards, so I thought, I'll just see what happens if I take these screws out...

... I did get it back together without damaging it eventually, but now the aperture ring doesn't rotate either.

It was more a curiosity than anything else, but its resale value is now nil, despite being optically perfectly Ok. Anyone wants it, they can have it for postage.

Kim C

Link Posted 31/10/2007 - 00:01
Don't tempt me. My wife will kill me!

Kim

JM231

Link Posted 30/01/2011 - 08:42
Hi, Kim , MattMatic,

Does anyone have a disassembly diagram for the SMC-FA 80-320, I need to repair electrical contact & hard point in Zoom ( between 120-200).

I use it with Kr (50 f1.7; 28-80; 80-320)

Your advise are welcome
Thank to help me
JM2

budzcars

Link Posted 25/02/2020 - 17:17
Hi Matt I have taken my fa 80-320 apart and have fixed loose board but in your pics couldn't find pics putting copper bars back in place if you had some pics it would be greatly appreciated. or a little how to
Thanks: Bud

MattMatic

Link Posted 03/11/2020 - 09:21
Apologies for humungous delay... (I'm rarely around here now, I'm afraid).

(Excuse the poor iPhone image quality - was in a hurry )

So, just dug out the old 80-320, and the brass parts are shims that sit between the outer barrel and the inner one. There are four holes in the inner barrel - you'll see that two shims sit on each side, and there's only one way the holes line up with the 'v' shapes: http://www.photon.me.uk/pu/IMG_2187.jpg

When reassembling, the screws go right through from the outer barrel to the inner one - clamping the brass shims. You'll see that the square with the tiny hole is accessible as you assemble. Use a fine pair of tweezer, or some stiff wire to hold the shims in place so you can get everything to line up. It's a fiddle, but not too bad. http://www.photon.me.uk/pu/IMG_2189.jpg
You should see the sandwich in this image. Make sure the shims sit nicely into the screws - keeping clearance from the inner barrel.

NOTE: PBase gallery long gone. Please see here for the gallery: http://www.photon.me.uk/pu/pentax_fa80_320/index.html

Hope that helps!
http://www.mattmatic.co.uk
(For gallery, tips and links)
Last Edited by MattMatic on 03/11/2020 - 09:21

davidwozhere

Link Posted 04/11/2020 - 00:43
I tried that and nothing happened ??
Both the *istDS and the K5 are incurably addicted to old glass

My page on Photocrowd - link
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