November 28, 2014, 02:03:19 AM

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Messages - Aglet

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That does sound odd. Maybe, as you say, you received a defective one. I've been shooting BIF's with the 100-400 no problem. Not in low light though. That may have been a factor.
Not sure but the lag I experienced was not unique to my experience alone.
Light level was decent enough that the ML bodies with slow long glass could outperform it handily.  i was more impressed with my EM10 than disappointed with the 7d2 in the conditions I was testing.

I wanted to use the rig for BiF and similar types of shooting, where the 7d2 should really excel.  I might try another 7d2 in the summer; hopefully they'll have attended to any early production glitches by then. I really liked the 7d-series handling and controls.  Until then, I'll use my 60d with the 100-400 and my Oly with the 75-300mm when I'm packing light.

Third Party Manufacturers / Re: Samsung NX-1 Review
« on: November 27, 2014, 01:17:10 AM »
The tricky part is not making the mirror go up and down ten times a second, it's all of the things that have to happen between each frame while the mirror is locked down for a thin fraction of a second. Focus tracking, evaluative metering,  iTR face recognition and vibration damping and a whole host of other things which are still done off of the mirror. In addition the mirror has to be down long enough to allow the photographer to continue viewing the subject and compose the frame during fast paced action while all of this is happening. Then the mirror has to  get out of the way of the shutter but without causing any image degrading vibration.

If you had any appreciation for the engineering feat this represents I doubt if you'd still go around calling them mirror-slappers. But maybe you would, who knows.

don't forget, when you get that flapping mirror out of the way, that makes more time available for actual imaging to happen, and AF.
Have another look at Nikon's 1v3 mirrorless and tell me that kind of performance is not useful for action or wildlife! :)  Ya, small sensor, needs decent light, but similar functionality with larger sensors is what the mirrorless machines will allow.  Mechanical shutters will only slew at limited speeds so smaller sensors = higher fps. Fully electronic shutter effect can be implemented at blazingly fast speeds, uhmmm, that's video.

So, as much as us tech junkies may appreciate the impressive mechatronic ballet that goes on in a DSLR, getting that mirror of there opens up a lot of new possibilities and the economics of silicon vs hardware will likely show up as a performance-to-cost ratio lead for mirrorless, if they're not already there.

My 7D2 has zero focus lag with the 100-400L or any other lens I've tried it with. Yours, or your lens, may have had problems. I assume I'm using the same firmware. The 100-400L is not known for being a particularly fast focusing.
I expected it to be, at least, no worse than my 40D or 60D with that lens.  That was not the case.
7d2 I had exhibited a definite and significant pause before driving the lens to focus and it hunted, and missed, far more than the 2 older bodies.  7d2 AF was very zippy with a few shorter zooms and lenses but that's not what I needed it for.
I only mentioned it in this thread because my Olympus EM10, a consumer-grade, CDAF-only mirrorless, with a 75-300mm lens that's even slower aperture than the 100-400mm L, would confirm AF on the same target, in the same low light, before the 7d2 even started to drive the 100-400mm.
I think the 7d2 will perform very well for AF, but there seems to be some buggy ones out there (There's a thread on that topic here somewhere.) and I'm not about to hold onto another buggy camera, waiting for a fix. 

All I can say is...WOW. I'm hooked on the NX1!! :P I think it may be my new high speed birding camera some time next year, assuming the lenses pan out. I think I'd get this before I got an A7r I am well and truly impressed.

I also find Samsung's entry into higher end ML to be quite interesting and might consider one myself, especially if there's a nice post-intro price drop next year.

Did you read the link in the post I made a while back?

it mentioned a bit about the hardware tech inside the camera, an aspect of which I think that you, given your vocation, might find extra appealing. :)

I returned my 7D2, mine had some serious initial AF lag issues which may well be improved in a firmware update but for now, ALL of my ML bodies and comparably long lenses can AF faster than the 7D2 I tried with its initial firmware. EDIT:  that's with the long lens I tested it with, the venerable, original, 100-400mm L.

I'm about to go the same route, I'm picking up a Pentax K-5 iis next week, my first film camera was a Ricoh. S

A friend of mine who is my photography mentor has a K-5 and he loves it. The K-5II is even better.   He almost talked me into getting a K-3 and I am not sure I made the right decision in not getting it.

I haven't bought the K3 (yet), but it looks to be a better performer for AWB and metering than previous Pentax bodies.
I use K52s, K30, K10 and I find the metering is often quite different from every other mfr body I use, and often in a way I find inconsistent and less predictable to compensate.  So I waste a lot more time chimping my histograms with Pentax than with other brands. Even then, and even when using full manual, I find I often need to tweak a bit in post.
When nailed, the IQ is excellent, so I've generally only used them for non-action work where I can re-shoot as needed.
Pentax lenses are another odd thing compared to others; their test results are usually not very impressive but the resulting images are generally pleasing. 
Pentax users are often quite avid about their equipment and I can often see why from the results I've obtained with my gear. (Tho I'm wondering about the results I'd get using a Sony A72 with K-mount adapter instead)

Photography Technique / Re: uneven polarization
« on: November 24, 2014, 12:24:19 AM »
I find I can achieve a similar enough effect, with more consistency and less color-shift, in post.
I only use a polarizing filter when I need to kill specific reflection issues but even then, things can be done in post.
It's my least-used filter.

Photography Technique / Re: how NOT to use studio lighting
« on: November 24, 2014, 12:20:18 AM »
I think the guy is just too lazy to get the flash off his camera, set up properly, or fix anything in post.

shot #17 from this batch

... is just a lesson on how to make an unattractive shot of an attractive model. The rest of the set is sub-par too.
The few other 'togs who do these shoots do a FAR better job of lighting than this ego-maniac.

IMO, JACK BOLAND, your lighting technique blows chunks.

maybe some little boxing-glove icons could be added in there too, for adversarial and combative posters. ;)

NOW we're getting somewhere!  A machine like this will temp even me to try out a Sony body... with lots of lens adapters.

translated at SAR forum:

for those who haven't experienced IBIS in a Pentax or Olympus body, it can work very well.  Makes nearly every lens you have stabilized, even classic old primes.

This is a product I wish Ricoh-Pentax would have put out... 2 years ago.

Higher-end A-9 model still rumored for early 2015,  Hmmm...

EOS Bodies / Re: Canon 7D II sensor measurement
« on: November 18, 2014, 10:54:38 PM »
The best page on the 7D Mark II sensor comes from

It is clear from this that Canon still hasn't resolved the high read noise at ISO 100 - 800.
their current system architecture has too many compromises to accomplish that.
But canon users can be happy that they've at least they've finally knocked FPN way down and hopefully that will also become an improvement across their whole range of SLR bodies.

EOS Bodies - For Video / Re: Is this normal, or an issue? 7D mkii
« on: November 11, 2014, 02:44:38 PM »
any chance someone was breathing a bit heavy near your camera and fogged the lens a little bit? ;)
kinda looks like a mild case of condensation

Here's another series of screenshots from Iridient Developer, v3 beta.

These are 25% linear scale of the black-cap-shots which give an impression of what the raw files are like when pushed even harder so you can better see the residual horizontal and vertical banding structures.

Files are saved as jpg with 4-4-4 subsampling to better preserve the speckle appearance which 4-2-2 otherwise smears.  hopefully that doesn't get messed up when uploaded here.

These are pushed FIVE stops.
Then another has +100 Fill Light added
Deep Shadow Fine Tune has NO tint correction applied

done for both 100 and 1600 Iso

one 1600 iso is pushed 5 stops, no fill light, and then Deep Shadow Tint-Correction is set to low.  Notice how it does a nice job of removed most of the red noise speckle.  No idea how well this would translate to shadow detail loss, however.  Perhaps someone can try that and post the results.

The file names are 7d2_iso-EV-fillLight-444.jpg

EDIT - just checked full size image recovered from clicking on the sample here and it's pretty much what it should look like.

Lenses / Re: Is the new 100-400L II going to be a push/pull after all?
« on: November 10, 2014, 09:19:58 PM »
I'm sure there should be some precautionary note about not pointing at the sun too long...

I don't know about your lenses or shooting circumstances, but for me lifting the +0.5lv af limit of the 60d (that's not very dark esp. with f4+ lenses) is a merit on its own.

FWIW, I measured +0.1 EV with my Sekonic 558 on an indoor target i was using for some tests.
with the 100-400 L mounted and stroked out to the 400mm end, the 60D and the 7d2 were both able to AF, and oddly, the 60D did it subjectively faster every time.
I think there may be some minor issues the 7d2 needs to have addressed with some firmware tweaks.
I'm pretty sure 7d2 would deliver better IQ than the good old, non-ML-equipped, 60D.

Lenses / Re: Is the new 100-400L II going to be a push/pull after all?
« on: November 10, 2014, 08:11:11 PM »
But it is a grower
hopefully also a show-er

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