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06-14-2016, 03:02 PM   #1
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First lens purchase for the K-1 (Sigma 100-300 F4 EX DG APO)

First of all, I had never seen one of these lenses before finding the ad for one. I looked at a few reviews, quickly decided that it could compliment my other gear very well and decided to give it a try.

The first impression was wow, that is one big ol' lens, I've seen smaller cars! The next impression was Wow, that is one heavy lens, it could probably be used as an anchor! Final impression was WOW, this lens is sharp, I could spot the flag on the moon with it! I thought the reviews that compared it to FA 300 or DA 300, was exaggerated, but now I am not that sure any more. This lens will better any 70-200 F2.8 I could have gotten, Sure, I lose 1 stop of light but I gain 100mm on the long end. Also I will get nice biceps with the weight of the thing!

06-14-2016, 03:07 PM   #2
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Enjoy it!

QuoteOriginally posted by discharged Quote
Also I will get nice biceps with the weight of the thing!
Once this feels light, you'll need to step up your game:
SMC Pentax-FA* 250-600mm F5.6 ED [IF] Reviews - FA Zoom Lenses - Pentax Lens Reviews & Lens Database
06-14-2016, 03:22 PM   #3
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QuoteOriginally posted by bertwert Quote
Enjoy it!


Once this feels light, you'll need to step up your game:
SMC Pentax-FA* 250-600mm F5.6 ED [IF] Reviews - FA Zoom Lenses - Pentax Lens Reviews & Lens Database
I think it might feel light, because it costs an arm and a leg. Maybe it can double it as a prosthesis aswell.
06-14-2016, 03:47 PM   #4
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It is very sharp lens but be careful some version of this lens has a common issue F--

06-14-2016, 05:30 PM   #5
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QuoteOriginally posted by zmohie Quote
It is very sharp lens but be careful some version of this lens has a common issue F--
Has it been determined as to what causes that issue?
06-15-2016, 04:09 AM   #6
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QuoteOriginally posted by discharged Quote
I thought the reviews that compared it to FA 300 or DA 300, was exaggerated, but now I am not that sure any more. This lens will better any 70-200 F2.8 I could have gotten, Sure, I lose 1 stop of light but I gain 100mm on the long end. Also I will get nice biceps with the weight of the thing!
Very good choice and congratulations! I have the same lens and it is absolutely stellar on my K-30, so I can't wait to try it on a K-1. And f4 is surprisingly useful even on my APS-C camera, so on a K-1 it will be even more so.

I made the same lens recommendation to someone last week in another thread who was pondering which 70-200mm to get for his K-1. Like I told him, the 100-300mm is like having a 70-200mm with a teleconverter built in, but without any of the size or image-quality tradeoffs that a TC involves. So I strongly agree that the extra 100mm is well worth sacrificing f/2.8.

It looks like there is still another 100-300mm f4 for sale in the Marketplace for some other lucky K-1 owner:

https://www.pentaxforums.com/forums/24-photographic-equipment-sale/315204-sal...-300-f4-2.html
06-15-2016, 06:58 AM   #7
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I sold mine to fund other things... then bought it back a few months later and am now reselling those other things haha.
06-16-2016, 08:56 AM   #8
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Can you post images with the K1 and Sigma 100-300 F4?

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