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04-10-2013, 09:26 PM   #781
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QuoteOriginally posted by jsherman999 Quote
I was saying the 14-24 is probably sharper than the DA 15, not the Zeiss. I was comparing them both to the 15.
Apologies J.

04-10-2013, 10:20 PM   #782
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Almost every blade of grass from the foreground to the hills in the background are in focus in these shots. It's hard to imagine much more DOF. (Full Resolution on Flickr)

D800E & Zeiss 21mm F2.8 Distagon @ F10



Last edited by bossa; 04-10-2013 at 11:02 PM.
04-10-2013, 11:28 PM   #783
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D800 Crop Modes w/ Zeiss 21mm F2.8 Distagon:
1:1


1.2x Crop


1.5x Crop


4x5 Crop
04-11-2013, 12:30 AM   #784
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QuoteOriginally posted by jsherman999 Quote


15 still wins in size + IQ + price combo. Now, if Pentax intends to stay aps-c-only, we need to see more like that.



.
Yeah, I agree on that.

Time has moved on.
Fuji now has small, fast primes that challenge what only Pentax offered on APS-C till some 2yrs ago.
Sony Nex used to be a laughing stock with its pretty poor prime offering and largish lenses for the system, but they have caught up a bit with smaller f2.8 primes mainly from Sigma.


If Pentax is committed to APS-C, then they better churn out more dedicated DA lenses that are smallish (due to aps-c image circle only and Pentax know how in lens design) and faster than what they are now (for the ones who want/need better light gathering or DOF control)


APS-C can be fine, but it needs commitment and a clear road map.
Unfortunately its all unclear as Ricoh/Pentax chooses to stay silent and even worse play word/mind games.
The number of people who can actually afford/want Pentax FF may be as what Pentax marketing research tells them.
But the number of users leaving Pentax is no joke and very real.
A clearer road map is what's needed to make people decide if they stay on or leave.

04-11-2013, 12:48 AM   #785
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QuoteOriginally posted by jsherman999 Quote
I was saying the 14-24 is probably sharper than the DA 15
Even the Sigma 8-16mm f/4.5-5.6 @ 15mm is sharper in the corners than the DA15mm f/4 ASPH, the Sigma zoom also has considerably lower CA than the DA15:


Unsharpened and uncorrected 100% crops from the extreme left corner of an image taken on a Pentax K5IIs
04-11-2013, 01:19 AM   #786
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Are we still worrying about our gear here?
04-11-2013, 01:26 AM   #787
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QuoteOriginally posted by the swede Quote
Imho, the difference between shutterspeeds from 1/4000 to 1/8000 is a very exagerated problem that people only see when they stare blindly at rumors and camera specs.
This. I've used 1/8000 exposure just to use it TBH. Never had a situation where I HAD to use it, and I couldn't stop down my lens, or lower my ISO more. I'd personally worry more about high ISO performance than that of good light, as with a FF camera, you can stop down a little more than APS-C anyway, resulting in greater potential options to counteract lack of shutter speed.(Heck, stopping down would improve IQ, since diffraction typically won't kick in till F11-13 on FF)
04-11-2013, 03:09 AM   #788
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QuoteOriginally posted by Eulogy Quote
This. I've used 1/8000 exposure just to use it TBH. Never had a situation where I HAD to use it, and I couldn't stop down my lens, or lower my ISO more. I'd personally worry more about high ISO performance than that of good light, as with a FF camera, you can stop down a little more than APS-C anyway, resulting in greater potential options to counteract lack of shutter speed.(Heck, stopping down would improve IQ, since diffraction typically won't kick in till F11-13 on FF)
Really? I guess you don't do much exposure bracketing, because I hit 1/8000 second shutter speed all of the time.

04-11-2013, 03:13 AM   #789
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QuoteOriginally posted by jsherman999 Quote
Tamron 28-75 f/2.8, $280 used, and pretty small!



.

Don't let them sucker you into the 'gotta buy the biggest and most expensive glass' camp. Those zooms are nice, but not necessary. (Nikon/Canon would love it if everyone thought they were necessary, though.)

.
I shoot Pentax for the Pentax glass. Sigma and Tamron both make decent glass, but if I were going to get a full frame camera, I would end up with Pentax zooms in the end, even if I had to save for a long time to get them. And in the end, for me, it is about the glass, not really about a specific camera body.
04-11-2013, 06:58 AM   #790
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QuoteOriginally posted by Rondec Quote
I shoot Pentax for the Pentax glass. Sigma and Tamron both make decent glass, but if I were going to get a full frame camera, I would end up with Pentax zooms in the end, even if I had to save for a long time to get them. And in the end, for me, it is about the glass, not really about a specific camera body.
In my humble opinion, Pentax makes fantastic primes, but the zooms, while good (16-50) to great (50-135), are no better or significantly different than what Canon/Nikon have offered in the same strata. IMO.

Recently Tokina, Tamron and especially Sigma have made lenses just as good (or very, very near) to the top lenses in their categories from Canon/Nikon. The 28-75 2.8 is one from the olden days that was always pretty much as good.

My only problem with the Tamron: 28mm vs 24mm.

If Pentax came out with a FF body... I think I'd concentrate on the small primes. Personally they work for me, and they are Pentax's strength. But if I did want to pick up a FF zoom, I'd look at Tokina, Tamron and Sigma - save money, no drop in IQ.

.

Last edited by jsherman999; 04-11-2013 at 07:09 AM.
04-11-2013, 07:01 AM   #791
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QuoteOriginally posted by Rondec Quote
Really? I guess you don't do much exposure bracketing, because I hit 1/8000 second shutter speed all of the time.
I suppose, I'm more of a "One shot, one kill" sort of fellow though; I feel as though if I need more than one frame of a single subject, I've not exposed properly, so I'm failing as a photographer. Perhaps I'm a little nuts, though.
04-11-2013, 07:33 AM   #792
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QuoteOriginally posted by Eulogy Quote
I suppose, I'm more of a "One shot, one kill" sort of fellow though; I feel as though if I need more than one frame of a single subject, I've not exposed properly, so I'm failing as a photographer. Perhaps I'm a little nuts, though.
I like gently done HDR and it requires mutliple exposures. I bump my head on 1/8000 second shutter speed on a regular basis. For those who don't do multiple exposures, it probably wouldn't matter as much.
04-11-2013, 07:46 AM   #793
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QuoteOriginally posted by jsherman999 Quote
In my humble opinion, Pentax makes fantastic primes, but the zooms, while good (16-50) to great (50-135), are no better or significantly different than what Canon/Nikon have offered in the same strata. IMO.

Recently Tokina, Tamron and especially Sigma have made lenses just as good (or very, very near) to the top lenses in their categories from Canon/Nikon. The 28-75 2.8 is one from the olden days that was always pretty much as good.

My only problem with the Tamron: 28mm vs 24mm.

If Pentax came out with a FF body... I think I'd concentrate on the small primes. Personally they work for me, and they are Pentax's strength. But if I did want to pick up a FF zoom, I'd look at Tokina, Tamron and Sigma - save money, no drop in IQ.

.
I do believe that the Canon/Nikon zooms are a step above Tamron/Sigma zooms. Obviously you pay more for glass that is the same brand as the camera you are shooting. I don't think that Pentax zooms would be any smaller than Nikon/Canon counterparts, but as long as the image quality and "Pentax colors" are there, I will be satisfied.
04-11-2013, 10:45 AM   #794
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QuoteOriginally posted by jsherman999 Quote
My only problem with the Tamron: 28mm vs 24mm.
I have two problems with it - the lack of 24 (required for me to consider it) and the lack of WR (I'm not buying lenses that don't have it).
04-11-2013, 11:15 AM   #795
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QuoteOriginally posted by Rondec Quote
I like gently done HDR and it requires mutliple exposures. I bump my head on 1/8000 second shutter speed on a regular basis.
Do you use in-camera HDR mode? Because I find that using that mode it keeps the lens fairly wide open and I don't know why. If you just stop down to f8 the shutter should be considerably better. Also, maybe an ND filter would be a good investment for you. A lot of other brand cameras are slower than 1/8000, at least back when I was comparing these numbers, but sure, faster may shutter speed can be an advantage
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