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07-26-2008, 08:34 AM   #16
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Kinda similar to the K20D's AF adjustments for up to 20 lenses, Pentax should provide menu options for users to set up their own crop factor per lens.

Better do before I get a patent on it

07-26-2008, 08:54 AM   #17
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QuoteOriginally posted by Kguru Quote
Better do before I get a patent on it
Now, that you published it here. it isn't patentable anymore. Prior art

May I add the square crop option?
07-26-2008, 08:56 AM   #18
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QuoteOriginally posted by Kguru Quote
Kinda similar to the K20D's AF adjustments for up to 20 lenses, Pentax should provide menu options for users to set up their own crop factor per lens.

Better do before I get a patent on it
Best of all worlds.
07-30-2008, 12:16 PM   #19
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..crop factor could learn something from Panasonic TZ-3

I have a compact Panasonic DMC-TZ3 that has 3 aspect ratio (4:3, 3:2, and 16:9) If you draw these on top of each other, you will find it's fit nicely in a circle. I really LOVE this, especially at 16:9. it extends the frame to maximize the image circle of the lens and you'd get a wider landscape coverage. What a fantastic idea to get the most out of the lens.

If they can't provide the 'selectable aspect ratio' cropping on DA lens, at least they should have the 'crop on/off' option so that the user can crop the frame to whatever ratio they see fit.

07-30-2008, 03:41 PM   #20
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Personally, although FF doesn't interest me in the slightest (I like the lighter, more compact APS gear), consider that the best of both worlds is possible:

Uncropped RAW, complete with vignetting, and automatically cropped JPEG, based on camera settings. Presumably, Pentax would just add some sort of cropping control to the firmware table they have of aperture sweet spots for lenses.

In that scenario, RAW+JPEG delivers the best of both worlds - you get a cropped and readily usable image from the JPEG, and if you want to push it, you have the RAW file available which you will have to crop manually.

(Although presumably the Pentax supplied software will be able to perform this crop automatically, the same way it can generate JPEGs based on the camera settings)

It's exactly the sort of crafty move I'd expect them to pull, only to continue to be pretty much ignored by everyone.
08-05-2008, 09:06 AM   #21
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QuoteOriginally posted by GaryM Quote
So, you're effectively cropping your bigger and more expensive FF camera back to APS-C, nullifying any advantage of the larger sensor. Seems kind of... pointless?
from what i know: not really. FF sensor "should" have better signal to noise ratio. Cropping to APS-C size only reduce the amount of pixels available. It doesn't change FF advantage in the improved noise.

However, if they're in a pixel race and supply FF chip with pixel density to the same of APS-C density, you'll be right, since the whole thing would be pointless if all you have is DA lens. i have 2 DA lens.
08-12-2008, 01:42 AM   #22
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Does someone know if the upcoming DA* 60-250 lens will be FullFrame? I want to know that, because I want in the future an FullFrame camera of Pentax and then I do not want to replace a lot of glass.
08-12-2008, 04:31 AM   #23
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Yes, it will.

08-12-2008, 05:05 AM   #24
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Thank you! Good news!
08-12-2008, 07:38 AM   #25
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Does anyone know if the DA* 16-50 2.8 is FF-compatible?

I want this lense but if this lense is useless on my next (probably FF) camera I wont buy it.
08-12-2008, 09:11 AM   #26
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QuoteOriginally posted by Serpiente Quote
Does anyone know if the DA* 16-50 2.8 is FF-compatible?

I want this lense but if this lense is useless on my next (probably FF) camera I wont buy it.
Not at all and btw, nothing remotely official can make us think that the 60-250 would be indeed FF lens. It might be but before an official statement, I would make up my mind.
08-20-2008, 01:51 PM   #27
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Does anyone know if the DA* 50-135 2.8 is FF-compatible?
08-20-2008, 11:07 PM   #28
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No, it isn't. So far, just 40 LTD, 70 LTD, 200* and 300* are the DA that cover the image circle needed by 24x36mm sensors.

If they carry the quality needed for such a sensor nobody knows, being that sensor not yet in existence.
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