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Forum: Pentax DSLR Discussion
09-26-2008, 12:55 AM
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Thank you for all the answers, I do understand it now.
That two images were a big help to visualize it.
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Forum: Pentax DSLR Discussion
09-25-2008, 02:49 PM
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Sorry, still not understand. Will I experience the same perspective (roughly), or just the distorsion of the further/nearer objects in the scene? I think my moving changes the perspective, but the 'how much' is still based on the focal length. I am just asking about the difference between the APS-C and FF in the perspective (and not FOV).
Btw, please forget the print size... we live in a digital world where there are only resolutions.
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Forum: Pentax DSLR Discussion
09-25-2008, 01:42 PM
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I was a while wondering about FOV change and crop factors (which I am absolutely understand both as perception and physics), why is it so important... FOV reduction is just like cropping an image and nothing more. We would like to take photos, most likely as we see it (beside the case when for example we really want to change the perspective or doing effects). For 35mm format we use 50mm so often, because it has both the right perspective and FOV.
But which is more important for making good photos? Perspective or FOV?
In the APS-C sense we use the crop factor for FOV, but the perspective remains the same for the focal length. So I am curious which is to be found more important for field works. For example I do enjoy the perspective of wide angles for macro works (moving all the surroundings far away and/or out of focus), but it is horrible for portraits.
My 50mm feels a good lens, but I cannot use mine, as it has a broken aperture which stays always wide open. Soon I'll change it for a working one.
Honestly, the question has some financial background also, as I'm thinking about buying something like FA35/f2 as a "normal" lens but I'm afraid of the perspective, as it is far from the perceptual one.
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Forum: Pentax News and Rumors
09-25-2008, 11:01 AM
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Sorry for the long comment, but I'd really like to share my ideas about Pentax marketing and current DSLRs. I also would like to stop you trolling and shaming Pentax for the current releases as I believe it is the right way.
I haven't read the whole thread through, so sorry for the possible repeats.
A little background: I am no way a professional, but a hobby photographer - or pro-sumer as you sometimes call it. I've used Cannon G3 for 5 years so I was a really Canon believer, but at the end I've realized my photography knowledge has way overgrown that camera's knowledge. I've been hesitating for more than a year to chose between Canon and Nikon, and finally I've arrived to Pentax just because K10D in that time has no severe cons but the ergonomics and compatibility was much better than the others (in the price range). It just did its job in in a good way as does it nowadays. I could not quote the review from which the final decision was made, but it told something like "Pentax is not superior in any way, but it does the its job well without the other brands annoying issues.".
I think that releasing an FF camera would be some kind of the end of Pentax itself. It is a struggling company, without having the necessary market share and FF takes a lot of research and money. Just ask yourself, do we really need FF? Does it make sense in a real way? With the normal 0.75-0.78 magnification viewfinder, you just see something like as on 1.3 crop camera. The technology for APS-C is already enough for taking very good photos even in the professional sense. The noise can be low and we even have 4.5mm fisheye for wide angle. Not to mention it is really not the place to compete for Pentax - they haven't got the lens for that.
I agree we do miss two things though, iso noise reduction and better AF.
K-m is the way to get new Pentax users. It has nearly the same specs as K10D (the only thing is really different is the pentamirror, not the battery). I think the K-m in AF sense must be much better than the other Pentax DSLRs, it must be the reason for using 5 points only - but I'm still waiting for the real tests.
Both the 30mm and the 55/f1.4 is a real interest on APS-C (for me), and the ring flash is just the thing to fill the hole in the available flash accessories.
The 60-250/f4 is expensive, but if it really does its job, I would never change it for the Tamron 70-200 with TC because of the resolution we could have. Also the 1.4 TC is a very good news, as it can be still used with 55-300 or the same little slower zooms (1 f-stop vs. 1.5 f-stop).
The lens roadmap is not updated officially, so we only know rumors to be based on. Well, everybody wants a 10-800/f1.4, but it's impossible with our current knowledge.
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