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Restoring a Ichizuka Telinar 105mm f/4.5 lens

Posted by: ryan @ 10:47 pm in cameras & lenses, diy refinishing

A few weeks ago I picked up an interesting vintage camera lens designed by the Ichizuka Optical Company. This lens, the Telinar 105mm F/4.5, originates from Japan, dating back to the mid 50’s & 60’s. Very little is known about this lens and its manufacturer. The only information I could find online was on the Camerapedia website. Drawn by its aluminum build, quirky shape, m42 mount and $20 price tag I was curious to see what sort of images it could produce.

The lens arrived through the mail in average shape. All the aluminum had tarnished to a dull flat silver and the inner lens element was coated with a film of fungus/haze.  After fully restoring my first camera lens, the Jupiter 11 135mm F/4, I thought I’d give this lens a try. To start, I had to figure out how to pull out the rear element to see if I could clean the haze. I purchased a compass from Home Depot to use as a spanner wrench but soon realized this was a mistake. Using a compass as a spanner wrench is a terrible idea as it warps with pressure when you unscrew any part of the lens. I bit the bullet and purchased proper spanner wrenches off eBay for $45 which were much more efficient at taking apart the lens.

Dismantling the lens was fairly easy. I managed to get to the hazy glass within 20 minutes. Luckily the haze wiped off easily, so I put everything back together and polished the aluminum with Autosol. After re-greasing the focusing helix with white lithium grease it was good as new! So how did it perform?

Mounted on a Canon 5D, the Telniar 105mm is surprisingly sharp. At F/4.5 images in the center are very sharp, but soft around the edges with low contrast. Ironically enough, these are exactly the sort of qualities I like in a vintage lens. If you see one of these lenses, don’t hesitate to pick one up!

ichizuka ichozuka ichizuka

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5 Comments // Leave a comment


September 18, 2009 @ 10:05 am

Excellent to see you grabbed a bargin here! Wish I had the courage to take apart a lens!

You also have some excellent photos on Flickr…

Regards,

John

ryan
September 18, 2009 @ 10:16 am

Thanks! Glad you like the photos :) It definitely helps to have the right tools for the job!

allan
November 1, 2009 @ 10:20 pm

first time here, im a newbie~ but wow~~ impressive! I will buy that for sure, i know my father might have couple of that, i might as well just steal them~ how old are they?

February 8, 2010 @ 8:29 pm

That a nice one Ryan , how did you manage to find that one!

there is no info what so ever about that lens , that’s seems to be a keeper.

Anyhow , just was checking your site and wanted to say hi.

ryan
February 8, 2010 @ 11:41 pm

Hey Eliot!

Just came across it on ebay! I was lucky and not that many people were bidding on it. Aluminum M42 Japanese lenses are pretty hard to find so I’m pretty lucky! :)

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