Taking apart a Meteor 17-69mm Zoom Lens
Posted 01 March 2017 - 11:50 AM
To my surprise I got it open and cleaned the fungus right off.
4 little rear elements popped out too and I think I put them back in the right order but the focusing isn't sharp at all.
I think this things been dropped at some point as I see evidence, also I hear a slight movement click if it's set anywhere but at 17mm tight.
The 4 small lenses have the inscriptions k,k, backwards N I think and what looks an I and L.
I think I've tried all permutations but maybe there's something deeper that's loose.
Any suggestions welcome.
(besides getting another lens, have that covered )
Posted 01 March 2017 - 06:06 PM
There are a lot of combinations of 4 elements if you also don't know which surface faces forward. Were there also spacers between some elements?
You might find a diagram somewhere - maybe someone like Olex Kolynychenko, who sometimes posts here, would have one if you PMed him.
The click in the zoom is probably play in a cam track, shouldn't cause a total loss of sharpness. Most likely you just have the rear elements out of order or backwards or not properly spaced. Welcome to the world of lens repair!
Posted 02 March 2017 - 07:33 AM
Thanks for the ideas. I'll try Olex. 24 different orders plus which way they face is a lot of combinations, although some don't fit behind others (no spacers)
Posted 02 March 2017 - 10:42 PM
Olex sent me a scheme that's pretty accurate once I understood it. This one seems off but hey thanks anyway.
I actually finally put them in right so I'm good to go!