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Old Nov 29, 2009, 3:33 PM   #11
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Paul - Some amazing photos!!

Les - I've been happy with the 135-600 pentax, (bought it used from KEH for about $400), but as Scott rightly points out, it is fully manual, and has caused me to miss some good shots because I am still too slow with it. But it is definitely a cheaper alternative...
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Old Nov 29, 2009, 8:15 PM   #12
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Paul - Some amazing photos!!

Les - I've been happy with the 135-600 pentax, (bought it used from KEH for about $400), but as Scott rightly points out, it is fully manual, and has caused me to miss some good shots because I am still too slow with it. But it is definitely a cheaper alternative...
I have never bought anything used off the internet...not sure what protection you have...but maybe that's what I should do.
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Old Nov 30, 2009, 5:28 PM   #13
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If you use PayPal the full purchase price is protected. I've many a transaction using them and no problems so far. I had an individual that didn't ship the item I won and PayPal forced him to reimburse me the full amount.
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Old Nov 30, 2009, 5:35 PM   #14
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There was some mention earlier of the newer 150-500 sigma versus the Bigma. On a Pentax body, where the image stabilizer is anyway, I would definitely go with the Bigma. I have seen many comparisons of these two lenses lately as I am considering going with the 150-500 for my Canon (need the OS), and the Bigma focuses just a bit faster and is just a bit sharper.
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Old Dec 3, 2009, 1:18 PM   #15
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Default 500mm f8 LZOS Mirror lens.

I recently purchased this lens and an M42 to Sony A adapter. If you can deal with a fixed aperture and poor bokeh it is a great lens for the money. Mine is in mint condition, came with 4 filters and a case, and cost $150.00 shipped. I love it!
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Old Dec 3, 2009, 4:26 PM   #16
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I recently purchased this lens and an M42 to Sony A adapter. If you can deal with a fixed aperture and poor bokeh it is a great lens for the money. Mine is in mint condition, came with 4 filters and a case, and cost $150.00 shipped. I love it!
Do you know if there is any site that would have pictures from this lens ?
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Old Dec 5, 2009, 12:06 AM   #17
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I have bought several lenses from this site.
http://cgi.ebay.com.au/MC-3M-5A-f8-5...item518ed79741
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Old Dec 5, 2009, 2:07 PM   #18
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Default New Sigma zooms are improved

I have just acquired for a bit under $600 a lightly used Sigma 120-400mm in my quest for an AF zoom in this range. I have done just a few quick test shots with it and so far am quite impressed. The HSM focus is quick, silent and accurate and the lens seems quite good even at 400mm.

It seems much improved over the earlier 135-400mm, which was noticeably soft at the long end.

Perhaps a better choice for birders is the new Sigma 150-500mm, big brother to the 120-400mm and with almost identical construction. It should give similar performance with a bit more reach.

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Old Dec 26, 2009, 4:05 PM   #19
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The acute sharpness, short length, and light weight make you forget the fact that it's a fixed aperture, manual focus lens. Once you get the hang of it after a few sessions you will love the MC 3M-5CA 500mm f8 mirror lens. At under $150.00 it has no competitors.
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Old Jan 8, 2010, 12:53 AM   #20
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I have a lot of fun using a Takumar 300 f4 with the Pentax 1.7 auto focus adapter. Effective focal length of 510mm and auto focus of course.
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