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06-02-2010, 12:25 PM   #1
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[ACQUIRED] Medium Telephoto Prime 1:1 Macro Lens

I have a Pentax K-x and hoping to try out a 1:1 macro lens. I'm trying to find one under $300. I'm in the market for a 90mm Tamron macro, but open to other offers too. On a budget so give this college student a nice deal.

Last edited by Parallax; 06-02-2010 at 02:39 PM.
06-02-2010, 04:20 PM   #2
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Here's a low cost suggestion for you.

Buy a used 2X pka teleconverter ( ~$45USD) & remove the lenses. With the 35-105 Pentax A lens you already have it will create a zoomable macro lens with a maximum mag of 1:1 or greater. All of the "A" features like auto flash exposure will still work.

The downsides are loss of focus at infinity when in use and a 70mm or so working distance at 1:1.

---------- Post added 06-02-2010 at 06:39 PM ----------

Another low cost suggestion that gives excellent results: use a $50USD Raynox DCR 150 close-up attachment with your F-70-210. That'll give a good range of magnifications and a working distance of more than 200mm. The adapter is easy to carry & attach. All automatic features of the lens including autofocus will be preserved. The increased working distance eases lighting problems.

The only downside is the image edges are not too sharp, but that seldom matters unless you are doing flat subjects like stamps. Look at the Raynox club thread for an idea of image quality..

Last edited by newarts; 06-02-2010 at 04:42 PM.

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