All Forum Comments
Comment by K10D posted on Landscape Shots at 21/07/2012 - 10:40
johnriley wrote:
Hence, the 55mm is the classic portrait lens on an APS-C camera.
I don't mean FOV John.Quote:
How is that compensated for with a 55mm lens?
55 x 1.5 = 82.5 or approx 85mm. To get the same view you have to back off to the same distance as an 85mm lens on full frame. Perspective is only controlled by the viewpoint, that is, how far away you are, so the effect is the same.How is that compensated for with a 55mm lens?
Hence, the 55mm is the classic portrait lens on an APS-C camera.
I am sure that a 55mm on APS-C has to be 1.5 times further back than an 85mm on 35mm format for the same FOV. Longer lenses have a flattening effect hence we did not use a 50mm on 35mm format and stand closer to get an 85mm FOV, we used an 85 or 100mm portrait lens and stood at a point to provide the desired FOV yet benefitted from the flattening effect of the longer lens.
I used the term flatten which is also akin to compression. Just looked for an example and found this. link
I'll make a point of shooting a portrait this weekend with the K5 and FA50mm and the D700 with the 85mm AFD, both f/1.4 lenses.
I'll keep the FOV the same and I expect that the compression/flattening effect will be there to see.
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Comment by K10D posted on We always seem to pay more! at 19/07/2012 - 06:56
johnriley wrote:
I think the answer is that there's a misconception that has arisen. Many people may consider a 50mm lens a "standard lens" and indeed it was, on film. And is, on a full frame DSLR. However, on an APS-C DSLR the standard lens is a 35mm and Pentax do indeed make a (very fine) budget standard lens.
Many have asked for a 70-200mm f2.8 and the same applies - our equivalent is the 50-135mm f2.8, again, a very fine lens.
The 50mm lens is actually a short telephoto and is equivalent to what was 75mm - a short portrait lens. If we want an 85mm f1.4, as was, then the 55mm f1.4 is it.
If we want a 100/105mm lens as was, then the 70mm and 77mm fit the bill, and so on. All the lenses are there, in the correct lengths for APS-C sensors.
WRT portrait lenses, an 85mm would be used on the 35mm format due to its flattening effect. How is that compensated for with a 55mm lens?I think the answer is that there's a misconception that has arisen. Many people may consider a 50mm lens a "standard lens" and indeed it was, on film. And is, on a full frame DSLR. However, on an APS-C DSLR the standard lens is a 35mm and Pentax do indeed make a (very fine) budget standard lens.
Many have asked for a 70-200mm f2.8 and the same applies - our equivalent is the 50-135mm f2.8, again, a very fine lens.
The 50mm lens is actually a short telephoto and is equivalent to what was 75mm - a short portrait lens. If we want an 85mm f1.4, as was, then the 55mm f1.4 is it.
If we want a 100/105mm lens as was, then the 70mm and 77mm fit the bill, and so on. All the lenses are there, in the correct lengths for APS-C sensors.
The 50-135 is indeed a fine lens and I'm very happy with mine. The only down side is that is too short at the long end. FOV does not replace actual magnification. I'm using my Sigma 70-200mm Ex 1 more than the 50-135mm.
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Comment by K10D posted on We always seem to pay more! at 19/07/2012 - 00:33
Comment by K10D posted on photography is not a crime at 18/07/2012 - 07:37
An iconic image is born.
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Comment by K10D posted on A British summer at 13/07/2012 - 23:20
Very well done Tim. Congratulations.
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fatspider wrote:
Will they be using Pentax as well?Quote:
A big thank you to all the PU users who helped me
It's what we do best on this forum Congratulations, lets hope the Olympic team do as wellA big thank you to all the PU users who helped me
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Comment by K10D posted on Success Story - and Thank You PU users at 09/07/2012 - 00:44
AndrewA wrote:
Anyone else had the chance to compare the other brand camera they nearly bought to their Pentax?
On several occasions but ended up buying them.Anyone else had the chance to compare the other brand camera they nearly bought to their Pentax?
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Comment by K10D posted on Kr vs Canon 550 at 07/07/2012 - 10:32
Darkmunk wrote:
OMG, I think I would kill (certainly kidnap) for the chance to use that piece of kit on my shoot this afternoon. I'm nearly crying...
Time for a cup of tea and a hobnob.
Bit extreme. Just rent one.OMG, I think I would kill (certainly kidnap) for the chance to use that piece of kit on my shoot this afternoon. I'm nearly crying...
Time for a cup of tea and a hobnob.
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Comment by K10D posted on Image taken with my new 645D at 06/07/2012 - 13:00
Best regards