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05-16-2012, 02:55 PM   #16
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QuoteOriginally posted by Lowell Goudge Quote
the question is do you own the Kenko PZ teleconverters presently?
No i dont. I picked these because they are the most easily available (and cheapest?) through a variety of sources such as ebay and other trading forums.

I didnt consider the older screw-drive sigma because I havent seen any for sale since I started looking. I'll add it to my shortlist.

05-16-2012, 05:33 PM   #17
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QuoteOriginally posted by Talos Quote
No i dont. I picked these because they are the most easily available (and cheapest?) through a variety of sources such as ebay and other trading forums.

I didnt consider the older screw-drive sigma because I havent seen any for sale since I started looking. I'll add it to my shortlist.
Check the market place there was one there a week ago
05-17-2012, 03:21 AM   #18
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QuoteOriginally posted by mikeSF Quote
I have and use the Tamron-F 1.4x TC and it works great with AF but not with MF because the clutch does not disengage as it should. Tamron customer service told me they are not compatible.
mm.. not being able to use MF could be a pain if the lens can't hit AF reliably in lower lighting conditions with the TC hooked up.. something else to consider I guess.

Seems all these lenses have their issues with using TC's. Maybe I should just forget about the TC's....
05-17-2012, 03:54 AM   #19
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Switch clutch to MF on the lens, and also on the camera, and MF is possible.

05-17-2012, 04:47 AM   #20
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I have an earlier version Sigma APO 70-200 f2.8. Some shots are a bit hit-and-miss, but I think I'm still learning how to get the best from this lens.

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05-17-2012, 04:49 AM   #21
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LOL - Maybe we should rename this thread - "70-200/2.8 options for K5 and Soccer/Football"
05-17-2012, 05:00 AM   #22
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I'm up for that Lauren.
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05-17-2012, 08:22 AM   #23
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QuoteOriginally posted by Ash Quote
Switch clutch to MF on the lens, and also on the camera, and MF is possible.
you think i don't know how to operate my lens?
No, the Tamron-F 1.4x is not compatible but I am going to try the Kenko and maybe the Pentax 1.7.

05-17-2012, 09:24 AM   #24
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soccer pics with the Tamron:

at 200mm f/8



at 150mm f/5.6
05-17-2012, 11:59 AM   #25
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Too Funny!!! I guess "Soccer/Football/Rugby" pics are the "lens charts" for 70-200/2.8 lenses!
05-18-2012, 10:44 PM   #26
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Press the lens release button on the body and keep it pressed for the duration of the shot when MF is required. Doing so disengages the screw drive motor from the lens - good for manually focusing lenses without Quick Shift focus ring (most/all? third party lenses) while the camera is in AF mode.
05-19-2012, 12:02 AM   #27
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Sigma 70-200 HSM II in really bad lighting:












It handles flair good enough.

05-20-2012, 12:18 PM   #28
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The Tammy is great for wildlife-I love mine. And for $649 new, I feel like I stole it.







05-22-2012, 11:06 AM   #29
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I have rented both the Sigma and the Tamron in the past. I personally hate the Tamron. Autofocus is slower and the manual focus mechanism drives me nuts! I much prefer a solid switch on the side of the lens that is hard to bump or change versus the Tamron design. It is pretty sharp though. The Sigma I last rented for a wedding and it was damn good and sharp!!! But also got REALLY heavy by the end of the day. It is a beast of a lens! Obviously the DA* 50-135 doesn't have the same reach but I LOVE the weight and the zoom range and the images from it. By far my favorite lens. But did just get the DA* 60-250 f/4 a few months back. f/4 on the K-5 is very useable in almost all situations, you get more reach the the Tamron and Sigma, the build quality is awesome, silent, and I have found it to be REALLY sharp and produces some great colors and bokeh! Of course right after I bought it I saw a Sigma 100-300 f/4 on the used marketplace here...which I used to own and think is an amazing lens!
05-22-2012, 12:18 PM   #30
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Tamron gets my vote, although I have no experience of the competition. Lo' and behold, some football shots:







I like how the subject sometimes looks almost like pasted on top of the background. I shoot mostly at f2.8 and have no issues with the sharpness. I don't even use the VR because the fast shutter speeds eliminate the vibration blur anyway.

Last edited by jppp; 05-22-2012 at 12:25 PM.
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