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Forum: Pentax K-1 & K-1 II
12-02-2017, 05:30 PM
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The DA* 300mm arrived yesterday and the FOV is indeed 300mm on the K-1 (equivalent if that needs to be added) as everyone said it would be. As best I can tell from the first half dozen or so shots of the Teton Range from my home it's IQ is indeed terrific. I'm looking for sharpness that will support the occasional very large print and it appears this lens has that . I much appreciate all of your opinions, uniformly positive, on this lens - it sure looks like a keeper.
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Forum: Pentax K-1 & K-1 II
11-26-2017, 06:30 PM
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Thanks very much to all of you for the explanations and clarifications. The comment on the Ricoh website, "focal length equivalent to 460mm in the 35mm format," really confused me (it's just plain wrong isn't it?). Since I had already ordered a used DA* 300 when I read that I became alarmed because I do not want a 460 mm lens. I also greatly appreciate the photos - the sharpness is terrific. Being a Formula 1 fan I thought the photo of Ricciardo in the Red Bull car was really good - it isn't easy to catch those cars so clearly with the speeds they go.
Thanks again. I feel much better about the purchase now.
Read more at: Using the DA* 300 on a K-1 - PentaxForums.com |
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Forum: Pentax K-1 & K-1 II
11-26-2017, 09:25 AM
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Having used full frame leses extensively on an aps-c camera in the past I thought I understood the "crop factor," at least somewhat, but apparently I don't. I'm considering purchasing a DA* 300 for use on my K-1 because of the stellar reviews in the lens review section of PF. But in further reading I found the following two quotes that confuse me.
In the PF Pentax K Mount Lens Series Explained page it states:
"Exceptions: The following three lenses officially cover the 24 x 36mm full-frame format: smc Pentax-DA* 200mm F2.8, smc Pentax-DA* 300mm F4, and HD Pentax-DA 560mm F5.6."
And I have read similar info elsewhere.
But on Ricoh Imaging's website info on the DA* 300 is the following comment:
"the smc PENTAX-D★ 300mm F4 ED[IF] SDM is a uni-focal super-telephoto lens with a focal length equivalent to 460mm in the 35mm format"
That seems backward to me.
To keep the question as simple as possible, if I put a DA* 300 on my K-1 what image will I see on the lcd screen - will it be the same as with a DFA 300 or will it be larger or smaller.
Also, if anyone has experience with the DA* 300 and any of Pentax's other star 300s I would be interested in your comparisons of the relative IQ of the different models, especially of sharpness.
Thanks for any help in clearing up my confusion!
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