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10-15-2014, 08:39 PM   #31
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For what it's worth... here are some observations on the use of the D7100 in a pro setting from Kirk Tuck (Visual Science Lab)...

The Visual Science Lab.: Observations about using a Nikon D7100 for work.

Cheers... M

10-15-2014, 08:54 PM   #32
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QuoteOriginally posted by Michaelina2 Quote
For what it's worth... here are some observations on the use of the D7100 in a pro setting from Kirk Tuck
I appreciate your prefacing the story referral in just the right way. I semi-follow Kirk Tuck's columns, but get fatigued too frequently because he is such a drama queen with his camera hardware. And the OP should bear in mind that Tuck's requirements are highly different from his. That' s what really matters.

M
10-15-2014, 09:30 PM   #33
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QuoteOriginally posted by Michaelina2 Quote
For what it's worth... here are some observations on the use of the D7100 in a pro setting from Kirk Tuck (Visual Science Lab)...

The Visual Science Lab.: Observations about using a Nikon D7100 for work.

Cheers... M
I read the article for interest sake, so thanks for sharing it. The D7100 buffer issue is one that seems to consistently come up in reviews and field comments.

This is not an issue I have run into yet with my K-3 which has a decent buffer. Wildlife shooting might test buffer issues on the D7100, especially BIF if shooting RAW continuous.

Everything is a trade off
10-15-2014, 09:34 PM   #34
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QuoteOriginally posted by Shanti Quote
Where did you get the 400mm Sigma? long out of production as far as I know
I've held the 7100 not so impressed,also there is Sony A7 series but afraid a big lens will break the body!! Also thought D800/810 in crop mode,but have read that it is not so good fro some reason
I've got a couple of D800e's and a D810 and use them regularly in 1.5x crop mode for birds and the moon using a Sigma 120-300 Sports. In 1.5x crop mode these cameras come out at around 15MP like the K-5 when you trim the end off the format to match the print proportions.

Seeing as I go to 100% often for online publishing I cannot see why someone would describe them as "not so hot". The D810 is a wonderful camera and in a league of its own.

10-16-2014, 04:30 AM   #35
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I love my K-3, it's an amazing photographic tool, even more so for birding and wildlife due to crop factor, Buffer speeds, IQ, improved AF etc. The issue with the using pentax is lack of glass on the long telephoto, more specifically lack of older cheaper glass. The DA 560 is a great lens but out of most people budgets. I've probably paid %30 more on my glass on PK then the Nikon or Canon equivalents. Like danedawg said few posts earlier if you go all out and buy premium glass you might save in the long run through the Canonikon route, otherwise its not worth jumping ship.
10-16-2014, 02:39 PM   #36
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QuoteOriginally posted by bossa Quote
I've got a couple of D800e's and a D810 and use them regularly in 1.5x crop mode for birds and the moon using a Sigma 120-300 Sports. In 1.5x crop mode these cameras come out at around 15MP like the K-5 when you trim the end off the format to match the print proportions.

Seeing as I go to 100% often for online publishing I cannot see why someone would describe them as "not so hot". The D810 is a wonderful camera and in a league of its own.
I had read (Hogan maybe?) that crop shots were better with a APS cam than a FF? have no way to test this myself. The D750 only gives 10mp cropped which may not be enough,but 15 is fine. A question for you--the same shot taken with say a 300mm FF & then cropped to size or a APS setting on D810 @ 300mm,which do you think is better? The D800 was my choice a few yrs back but budget said no ..but now have more $$ to use.
10-16-2014, 03:01 PM   #37
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The crop image on a D800 is smaller than the image on a K-3. 24 MP against 15 MP. The upside for Nikon users, ,16Mp is plenty..... the downside, not as much magnification for macro or wildlife. As for buffer depth, I've used my whole buffer on a K-3, I shudder to think how this would go with a D7100. At 5 frames a second, a rate the K-3 is more than comfortable at, that's only 6 seconds.
10-16-2014, 04:25 PM   #38
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QuoteOriginally posted by Shanti Quote
Would you say Nikon high end glass is better than Pentax? for me the DA*300 is very good,only AF is too slow at times
Pentax high end wildlife Glass has been discontinued except for Sigma 500/4.5 and 300/2.8 which they MIGHT not be producing anymore and the 560mm which is producing amazing results but I think I would rather have 500/4.
The Da*300 is a great lens but I can not compare it to nikon 300/2.8 which cost 5x the amount.
The speed of focus with the 1.4TC is amazing when you move the lens to different areas you don't even notice, everything is just in focus.

Norm when I switched to the d7100 I was very worried because the buffer does not compare to the k-3 but I shoot in burst and the d7100 buffer clears very fast, take six shots wait a 1/4 second and take few more ect,ect.

One thing I hate about nikon is when its set to 9-point AF it does not show which point it is focusing on.
One thing I love is when you review your pics on the lcd it does show you where you focused on.


Last edited by dane.dawg; 10-16-2014 at 04:40 PM.
10-16-2014, 04:41 PM   #39
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QuoteOriginally posted by normhead Quote
The crop image on a D800 is smaller than the image on a K-3. 24 MP against 15 MP. The upside for Nikon users, ,16Mp is plenty..... the downside, not as much magnification for macro or wildlife. As for buffer depth, I've used my whole buffer on a K-3, I shudder to think how this would go with a D7100. At 5 frames a second, a rate the K-3 is more than comfortable at, that's only 6 seconds.
If pixel density were the only issue here then one would be better off using a Q and a DA*300. I haven't tried a 24MP camera in awhile so I can't say what the noise would be like at 100% for birding. The noise of my K-5 is about the same as my D800 @ 100% and I really wouldn't want to add more.
10-16-2014, 04:48 PM   #40
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QuoteOriginally posted by bossa Quote
If pixel density were the only issue here then one would be better off using a Q and a DA*300. I haven't tried a 24MP camera in awhile so I can't say what the noise would be like at 100% for birding. The noise of my K-5 is about the same as my D800 @ 100% and I really wouldn't want to add more.
That can be an issue but in many instances the noise is really only a factor in the bokeh.. I can selectively ad NR to the background without losing detail on the subject... the noise gets lost in the feather detail or fur.
10-16-2014, 04:52 PM   #41
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QuoteOriginally posted by Shanti Quote
I had read (Hogan maybe?) that crop shots were better with a APS cam than a FF? have no way to test this myself. The D750 only gives 10mp cropped which may not be enough,but 15 is fine. A question for you--the same shot taken with say a 300mm FF & then cropped to size or a APS setting on D810 @ 300mm,which do you think is better? The D800 was my choice a few yrs back but budget said no ..but now have more $$ to use.
My experience has been that my D800 in 1.5x crop mode comes out about even with the K-5 for IQ. IF you only want the "reach" and intend to crop then a $500 used K5IIs and a DA*300 would be the go. Telephoto's on FF cost a fortune and if you aren't able to fund the lenses you lose the value of the larger format when you crop all the time.

Earlier someone said they would buy a AF-S 300 F2.8 G VRII if they went Nikon but you have to remember that it's a $6000+ lens. If you can get pretty close for under $2.5k (K-3 (or used K5II) & DA*300) then that would be the preferred option if cropping. Remember there's a new zoom (150-400?) coming soon as well.
10-16-2014, 06:28 PM   #42
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QuoteOriginally posted by bossa Quote
My experience has been that my D800 in 1.5x crop mode comes out about even with the K-5 for IQ. IF you only want the "reach" and intend to crop then a $500 used K5IIs and a DA*300 would be the go. Telephoto's on FF cost a fortune and if you aren't able to fund the lenses you lose the value of the larger format when you crop all the time.

Earlier someone said they would buy a AF-S 300 F2.8 G VRII if they went Nikon but you have to remember that it's a $6000+ lens. If you can get pretty close for under $2.5k (K-3 (or used K5II) & DA*300) then that would be the preferred option if cropping. Remember there's a new zoom (150-400?) coming soon as well.
Hi maybe you missed,but I have The K5II & DA*300&1.4TC,just need some more reach,therefore I ask about Nikon.
My question was if you take the shot in FF 36MP & crop,would that be better than an APS uncropped one, say using a 300mm lens on both cameras.
10-16-2014, 08:33 PM   #43
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QuoteOriginally posted by Shanti Quote
Hi maybe you missed,but I have The K5II & DA*300&1.4TC,just need some more reach,therefore I ask about Nikon.
My question was if you take the shot in FF 36MP & crop,would that be better than an APS uncropped one, say using a 300mm lens on both cameras.
No. My recommendation is to stick with what you have and wait to see how the new 150-420 zoom works out (obviously I don't know what the exact range is there). But a K-3 will allow further cropping due to the extra pixel density: For example, a D7100 has an "extra" crop mode of 1.3x, which, when considered with the already 1.5x crop of the format, works out to around 2x and gives a 15MP image. The K-3 could do likewise apart from not having the dedicated crop mode shown in the VF. [edit: combine that 2x with a TC and a 300mm becomes a 840mm as per FOV]

Your DA*300 and TC are equivalent to the FOV of a 630mm lens on FF and so far only expensive 600mm lenses ($10,000) work well wide open. IMO the Tamron 150-600 is not good enough for serious work as it needs to be stopped down to f/8-9 to get reasonable results, and then of course you're trying to compensate for slow shutter speeds by boosting ISO.

There's no cheap and easy way around a fast Super Tele (f/4) that's sharp wide open.

Last edited by bossa; 10-16-2014 at 08:43 PM.
10-17-2014, 06:16 AM   #44
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Or to put it another way... if you're going to put along lens to the most demanding uses out there, there's no free lunch. The Pentax 560 looks like a great lens. It was a little large for my liking, but Nikon, Canon, whatever, this is a very expensive type of shooting to buy into.
10-17-2014, 06:54 AM   #45
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To me the only appeal to going Canon or Nikon are the older more affordable fast primes you can get on the used market (something that Pentax system lacks), and some of the 3rd party choices which are not available for Pentax (like the Sigma 120-300mm f2.8) Buying new, most recent and expensive lenses will not be a prudent choice (It will make the switch very expensive and in my view unjustified)
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