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02-26-2009, 09:45 AM   #16
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QuoteOriginally posted by calicojack Quote
MikeP,
I see in your signature that you have both the Sigma 135-400 and the Tamron 1.4X TC. Have you tried them together? If yes, what do you think of the combo?
Brian

To be honest I haven't really tried them as the lens is back in the UK and I am in Spain atm.
I did a quick test when I had them both with me.

Sigma 135-400mm on its own.



With Tamron 1.4x



As a comparison this is taken with a Pentax F 50mm f1.7



Pentax F* 300mm



Pentax F* 300mm with Sigma 2X EG DG TC



This is only a comparison remember, taken different days and under different conditions.

02-26-2009, 04:50 PM   #17
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QuoteOriginally posted by Vylen Quote
duct tape :P
Fixes darn near everything, doesn't it?
02-26-2009, 04:54 PM   #18
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QuoteOriginally posted by Mike.P Quote
To be honest I haven't really tried them as the lens is back in the UK and I am in Spain atm.
I did a quick test when I had them both with me.

Sigma 135-400mm on its own.




Pentax F* 300mm



Pentax F* 300mm with Sigma 2X EG DG TC



This is only a comparison remember, taken different days and under different conditions.
The first one and (of course) the last two are the best versions of that shot that I've seen.
02-26-2009, 05:00 PM   #19
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Finally took some quick test pictures

All taken within minutes of each other. 135, 200, 300, 400mm based on the marks on the lens barrel and confirmed in exif. Jpg extracted from pef in photo browser and resized in Elements 5 only.

Attached Images
       
02-26-2009, 05:04 PM   #20
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2nd set of test pictures

Same notes as above.
Attached Images
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PENTAX K10D  Photo 
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PENTAX K10D  Photo 
02-27-2009, 12:12 AM   #21
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The ones of the bakery are not bad at all.
Are you using a tripod/monopod?

I never bother which is probably the reason mine are very hit and miss
02-27-2009, 03:26 AM   #22
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QuoteOriginally posted by Mike.P Quote
The ones of the bakery are not bad at all.
Are you using a tripod/monopod?

I never bother which is probably the reason mine are very hit and miss
Yes, I'm using a monopod.
Giottos | MM 9750 4-Section Monopod | MM9750 | B&H Photo Video
With the lens rotating tripod mount, it makes it very easy. On really bright days I can probably get away with hand holding, but for (literally) my first shots with the lens, I wanted to eliminate any user problems.
Brian

Last edited by calicojack; 02-27-2009 at 03:31 AM.
02-27-2009, 06:17 AM   #23
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I think actually I expect too much of this lens, especially for what it cost.
My problem is I do a lot of macro shooting and I am expecting a lens that can reach 400mm and cost less than my macro lenses to be as sharp .. which is never going to happen. I would say as long as you are not looking for pin sharp IQ it will do the job nicely.

I will keep playing with it and try with my monopod.

02-27-2009, 11:26 AM   #24
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QuoteOriginally posted by Mike.P Quote
I think actually I expect too much of this lens, especially for what it cost.
My problem is I do a lot of macro shooting and I am expecting a lens that can reach 400mm and cost less than my macro lenses to be as sharp .. which is never going to happen. I would say as long as you are not looking for pin sharp IQ it will do the job nicely.

I will keep playing with it and try with my monopod.
No, it is not and never was meant to be a 400mm Macro lens. Neither is it a Pentax Star quality lens. My other thought was to buy one of the A*300mm f4 lenses that were in the marketplace recently and use it with my Tamron 1.4X. I already own the TC and the lens would have been almost 1.5X the price. It would have given me 135 (DA*50-135), ~190 (+ 1.4X), 300 (A*), & ~420 (A* + 1.4X). Reasonable stops through the range, but with a lot of on / off. I figured the zoom 135-400 would be way more convienient (at a lower price). OK, the quality isn't *(star) level, but I'm shooting for my friends, family & myself, not for gallery or sale purposes. I'm hoping that it will give me reasonably good results, and based on not enough testing, it looks OK to me.
Brian
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