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Screamin Scott
Joined: 13 Oct 2007
Posts: 1014
Location: Dallas, Georgia USA
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 Posted: Wed Jul 14, 2010 4:46 pm Post subject: 200mm F3.5 preset Vivitar |
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Screamin Scott wrote:
Just had this lens delivered here to my work today. I opened it up only to find that the whole front end of the lens comes off. The front element, one of the aperture rings, some kind of spacer & a little spring are detached from the front. Anyone know how these can be reassembled? (hopefully no parts are missing). I'm at a loss as to how it goes back together. I was able to reassemble the pieces, but how does it stay together?...I'm pissed, this is one of those with lots of iris blades...
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Cameras-Nikon D300, D7100,D610,FE2,FTN ,FT2,N90s, Olympus Pen EP-3 & Olympus OM-D E-M10
Nikkor AF Zooms=28-105/3.5D,28-70/3.5D,35-135/3.5, et al
Nikkor AF //50/1.8,//Nikkor MF//50/2ai,50/1.8ais 50/1.4ai,24/2.8ais,28/2.8ai,28/3.5ai,55microAis/2.8,105/2.5ai,200/4ai,300/4.5ai35-135/3.5Ais,et al
Kiron /Kino made lenses//70-210/4ai,28-105/3.2ai,30-80/3.5ai,Viv 28/2ai,35-85/2.8aiVivS1,105/2.8Ais Dine,24-48/3.8ai VivS1,50-150/3.8aiViv,28-85/2.8aiViv,100/2.8Nai Viv,70-210/3.5Nai Viv,28/2.5ai Viv Komine made Viv//24/2Ais,135/2.8aiCF,28-50/3.5ai,28-90/2.8ai Viv S1,80-200/4.5aiCosina made Viv 19/3.8 Ais...Also Sigma 24/2.8 Ais Tokina made24/2.8ai VivAF Sigma 21-35/3.5,& other lenses... A link to some of my Flickr albums...
https://www.flickr.com/photos/screaminscott/albums |
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woodrim
Joined: 14 Jan 2010
Posts: 4060
Location: Charleston
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| Posted: Wed Jul 14, 2010 5:03 pm Post subject: |
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woodrim wrote:
How does that happen during shipping?
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Woodrim |
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luisalegria
Joined: 07 Mar 2008
Posts: 6602
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Wed Jul 14, 2010 6:06 pm Post subject: |
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luisalegria wrote:
I had one, gave it to Big Dawg. I did some work on mine as it had dislocated aperture blades so I had to disassemble it.
The front end is held on to the rest with, if I recall correctly, three tiny setscrews. These may be loose or missing.
The little spring may be the one that holds the little ball (if I recall correctly) that "clicks" into the detents in the aperture ring.
You want to make sure you have not lost that little ball or the setscrews. The ball may be stuck to the detents with grease if its not loose.
If you have a loose aperture blade you may have to do more extensive disassembly. A pity I didn't take pictures the time I did it.
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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Screamin Scott
Joined: 13 Oct 2007
Posts: 1014
Location: Dallas, Georgia USA
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| Posted: Thu Jul 15, 2010 12:22 am Post subject: |
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Screamin Scott wrote:
Found the set screws (still in the barrel, but the detent ball is missing...I reassembled it as best as I could. I'll take some test shots tomorrow after I get home from work. The Iris blades are fine (just a little oil on some). I emailed the eBay seller & am awaiting her response....
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Cameras-Nikon D300, D7100,D610,FE2,FTN ,FT2,N90s, Olympus Pen EP-3 & Olympus OM-D E-M10
Nikkor AF Zooms=28-105/3.5D,28-70/3.5D,35-135/3.5, et al
Nikkor AF //50/1.8,//Nikkor MF//50/2ai,50/1.8ais 50/1.4ai,24/2.8ais,28/2.8ai,28/3.5ai,55microAis/2.8,105/2.5ai,200/4ai,300/4.5ai35-135/3.5Ais,et al
Kiron /Kino made lenses//70-210/4ai,28-105/3.2ai,30-80/3.5ai,Viv 28/2ai,35-85/2.8aiVivS1,105/2.8Ais Dine,24-48/3.8ai VivS1,50-150/3.8aiViv,28-85/2.8aiViv,100/2.8Nai Viv,70-210/3.5Nai Viv,28/2.5ai Viv Komine made Viv//24/2Ais,135/2.8aiCF,28-50/3.5ai,28-90/2.8ai Viv S1,80-200/4.5aiCosina made Viv 19/3.8 Ais...Also Sigma 24/2.8 Ais Tokina made24/2.8ai VivAF Sigma 21-35/3.5,& other lenses... A link to some of my Flickr albums...
https://www.flickr.com/photos/screaminscott/albums |
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Big Dawg
Joined: 28 Jan 2009
Posts: 2530
Location: Thach Alabama
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| Posted: Thu Jul 15, 2010 4:46 am Post subject: |
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Big Dawg wrote:
You can get a small metal ball for that detent by destroying a very small ball bearing and using one of the balls from that.
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Big Dawg |
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Screamin Scott
Joined: 13 Oct 2007
Posts: 1014
Location: Dallas, Georgia USA
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| Posted: Fri Jul 16, 2010 8:44 pm Post subject: |
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Screamin Scott wrote:
Ed, can you elaborate on making a ball bearing?....I have taken some test shots & the the images appear to be focused behind the subject....I'm assuming it has to do with the placement of the front element?
_________________
Cameras-Nikon D300, D7100,D610,FE2,FTN ,FT2,N90s, Olympus Pen EP-3 & Olympus OM-D E-M10
Nikkor AF Zooms=28-105/3.5D,28-70/3.5D,35-135/3.5, et al
Nikkor AF //50/1.8,//Nikkor MF//50/2ai,50/1.8ais 50/1.4ai,24/2.8ais,28/2.8ai,28/3.5ai,55microAis/2.8,105/2.5ai,200/4ai,300/4.5ai35-135/3.5Ais,et al
Kiron /Kino made lenses//70-210/4ai,28-105/3.2ai,30-80/3.5ai,Viv 28/2ai,35-85/2.8aiVivS1,105/2.8Ais Dine,24-48/3.8ai VivS1,50-150/3.8aiViv,28-85/2.8aiViv,100/2.8Nai Viv,70-210/3.5Nai Viv,28/2.5ai Viv Komine made Viv//24/2Ais,135/2.8aiCF,28-50/3.5ai,28-90/2.8ai Viv S1,80-200/4.5aiCosina made Viv 19/3.8 Ais...Also Sigma 24/2.8 Ais Tokina made24/2.8ai VivAF Sigma 21-35/3.5,& other lenses... A link to some of my Flickr albums...
https://www.flickr.com/photos/screaminscott/albums |
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Big Dawg
Joined: 28 Jan 2009
Posts: 2530
Location: Thach Alabama
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| Posted: Sat Jul 17, 2010 6:55 pm Post subject: |
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Big Dawg wrote:
| Screamin Scott wrote: |
| Ed, can you elaborate on making a ball bearing?....I have taken some test shots & the the images appear to be focused behind the subject....I'm assuming it has to do with the placement of the front element? |
You can check that Scott by loosening the outer lens element and seeing if that makes it worse. As to the ball bearing situation...you can ge a small bearing of the ball bearing type and break it open (sometimes requires a bench grinder to get it apart) and use one of the balls in that bearing as the detent ball. Main problem is finding a bearing with the right size balls to do the job. I have access to many bearings (used) that I pick through when I need one. The other thing you can do is run it by Peachtree Camera Repair and see if they have one. http://www.peachtreecamerarepair.com/index2.php
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beachboy2
Joined: 06 Sep 2009
Posts: 70
Location: Perth, Western Australia
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| Posted: Sun Jul 18, 2010 3:57 am Post subject: |
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beachboy2 wrote:
I have seen reference to using the ball from a "biro" type pen as replacement detent ball bearing. Good luck
bb2
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K5, K20D, Bigma, Sigma EX 105, Sigma EX 10-20, Sigma EX 28-70 F2.8, Sigma Ex 1.4TC,
Pentax 135 F3.5, Pentax 30mm F2.8 , Pentax 50mm F1.7, Pentax 55mm F1.8, S-M-C Tak 35mm F3.5, Super Tak 135mm F3.5, Super Tak 50mm F1.4, Super Tak 200mm F4
Vivitar 135mm F2.8, Vivitar TX 200mm F3.5, Vivitar 2X TC, Vivitar TX 300m F5.6 Vivitar T4 400mm F6.3
Tamron SP 35-80,80-210 F3.8, 300mm F2.8 360b,Helios 44M, Chinon 28mm F2.8, Chinon 35mm F2.8, 3M-5A 500mm F8, Mir 1B 37mm F2.8, Jupiter 9 85mm F2, CZJ Biometar 80mm F2.8 |
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