September 23, 2014, 12:40:13 AM

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Messages - l_d_allan

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Pricewatch Deals / Relevance?
« on: September 16, 2014, 02:49:21 AM »
Maybe I'm being slow, but I don't see the relevance of this article to CR.

Is Canon equipment used at the work-shop?

EOS Bodies / Re: Didn't see "Cello video" having front-to-back follow focus.
« on: September 15, 2014, 10:10:06 AM »
Then you can have a look at this:
Thanks. Impressive, although I'm not informed enough to really know what to look for.

EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 09:57:18 AM »
The original 7D was an amazing camera with a mediocre sensor
Mediocre by 2014 standards?

IIRC, the 2009 18 mpix 7d sensor was considered excellent, and exceeded expectations. I recall the DPR article about the 50d being underwhelming because the per-pixel IQ was less than the 10 mpx of the 40d. DPR declared the "end of the DSLR megapixel war" since the 15 mpix of the 50d wasn't really that much better, if any, from the 40d.

And then the 7d was released, with better per-pixel IQ than the 40d or 50d ... I really don't think people in 2009 considered the 7d's sensor to be "mediocre", except compared to the full frame 5d.

And then the Sony Exmor sensor started showing up in Nikons, like their excellent D7000.

...the 5DII was a mediocre camera with an amazing sensor
I'll agree that the AF of the 5d2 was underwhelming.

However, I haven't noticed the kind of "feeding frenzy" to pre-order a 5d2 on any other camera announcement. People were paying significantly over MSRP to get a NIB 5d2 on eBay.

EOS Bodies / Didn't see "Cello video" having front-to-back follow focus.
« on: September 15, 2014, 09:42:16 AM »

Thanks for the link.

I'm mostly ignorant about video, but in that sample video, I didn't see what I consider to be a real challenge to follow focus ... a person running diagonally through the scene towards the camera, from upper left in the viewfinder to directly in front of the camera, and then running away from the camera to the upper right.

The movement of the dancers seemed mostly side to side, rather than front to back.

That challenge would be like a baseball video from a seat just behind first base, and the batter running to beat out a bunt from home plate to first base.

I wonder how the 70d does on such a challenge, and how the 7d2 will do.

Perhaps even more challenging ... tracking a single runner among multiple runners, like at an outdoor soccer game?

And more challenging? Indoor sports with multiple players running around, like basketball action?

EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 09:22:41 AM »
As wildlife photographer there is a lot of important key features.
Agree, as long as the wildlife weren't moving around much in dim light.
think is as 1dx with smaller sensor.....

If the 1Dx had so-so high ISO from 2009 technology, and lower DR than the 7d's 18 mpix sensor (according to

EOS Bodies / Re: Official: Canon EOS 7D Mark II
« on: September 15, 2014, 09:13:09 AM »
I'm anxious to see what the new sensor has to offer. Hopefully, it's got more latitude than the 18 mpx it replaces.

Same here. My speculation is that the sensor will turn out to be a mildly refreshed 70d.

According to, the 70d at 10.9 ER actually has LESS DR than the 18 mpix sensor in the 7d and T2i (with 2009 technology)

Maybe videographers aren't underwhelmed?

Maybe BIF or outdoor sport 'togs aren't underwhelmed?

I'm speculating that the 7d2 has a "mild refresh" of the sensor in the 70d ... and I hope I'm mistaken when actual in-depth reviews are available.

According to, the DR of the 70d is 10.9 EV. That's actually LESS than the 7d or T3i with 18 mpix sensors and 2009 technology.

"Best of breed" APS-C sensors from Sony range from 13+ to 14 EV (for older D7000 which may be a misprint?)

I will admit that the AF system of the 7d2 looks very impressive for outdoor sports, but I'm not that much of a "sports shooter". The sports I do take tend to be indoor basketball.

I wouldn't consider the 7d2 to be all that suitable for indoor sports action ... based on it not having good enough high ISO. I again hope I'm proven wrong when in-depth reviews are available.

It will be interesting to see how long it takes 7d2 video technology and AF to "filter down" to the Rebel line.

My 2¢:
• If I owned a Rebel with one or two EF-S lenses, and
• was seriously thinking of upgrading to full-frame,
• I'd give very serious though to abandoning Canon and going to Nikon or Sony full-frames


PowerShot / BSI sensor? n/t
« on: September 14, 2014, 04:04:26 PM »
no text

Pricewatch Deals / Re: Preorder Zeiss Otus 85mm f/1.4 Apo Planar T*
« on: September 09, 2014, 09:20:50 PM »
Outside my budget, but actually not as high as I was expecting.

EOS Bodies / Re: Are These The EOS 7D Mark II Specifications?
« on: August 22, 2014, 03:55:53 PM »
Yawn. Looks like an upgrade to the 70d.

Third Party Manufacturers / Re: Samyang Teases New Lenses
« on: August 20, 2014, 04:58:23 PM »
f/2 or f/1.2?
F/2 should be either superb quality or really cheap - like give an opportunity to try out MF lenses for newbies.
F/1.2 sound interesting though.

I've been very happy with my Samyang 14mm for Canon f.f., and 8mm fisheye (which works well on f.f. with two part lens hood full removed, even though the description makes it seem like it is for crop 1.6)

I am very much more interested to see them market relatively slow f2 and f2.8 lenses for low price, rather than faster, less sharp f1.4 lenses like the 35mm and 85mm. Those are relatively expensive, and would seem to be a bear to focus with shallow DOF. However, they would have a bright image in the viewfinder.

I think a very interesting bundle of Nikon D810 + Samyang 14mm f2.8 and Samyang 50mm f2 would be appealing, at least to me. It would be a waste of the Nikon AF system, however.

Also smaller than Leica S2?

And perhaps the hypothetical EMF mount could accept EF lenses directly?  The image circle from EF primes might appear like a true 8mm fish-eye, but obviously be rectilinear.

My understanding of the existing T/S lenses is that they have the image circle of MF lenses.

Those T/S lenses could have T/S removed, have the EMF mount, with AF and maybe IS. Those could be the initial primes for the hypothetical  Canon MF.

Sorry for being an AsK-Hole, but does PocketWizard  (or other vendor) make a version with built-in mini-flash, perhaps with a bit of bounce flash capability?

It might only have the power of a Rebel. It might be the equivalent of having a D700 with it's built-in flash for Canon full-frame, that could be used as a Master.

Seems like Canon engineers could come up with a mount that could also accept EF lenses, and a body that was MUCH MUCH smaller than the Pentax 645z. Smaller than Leica S2?

The MF lenses would obviously be optimized for the full sensor. (unfortunate TLA ... two letter acronym   :-\ )

The EF lenses would vignette like crazy, but maybe less than expected. The T/S lenses are basically MF with large image circle. A sensor size where the most common or best EF image circles just touched the top and bottom ... 12mm away .. might be usable. Or less ambitious, touched the left and right ... 18mm away.

Actually, the existing T/S lenses with AF and maybe IS, and without the t/s mechanism might be the initial primes? Or not?

My 35mm f2 IS on this camera would look like a true 8mm fisheye on a full-frame, except rectilinear, obviously. It's image circle would just touch the top, and would be several mm within the left and right. My understanding is that the image circle of primes is larger than might be expected, to have corner-to-corner sharpness.

Maybe Roger Cicala at LensRentals can get an evaluation copy, with NDA?

The 645 and all other digital MF cameras I'm aware of are designed around mounts for 6mm x 6mm film, which is HUGE, and much bigger than it has to be for the 50 mpx Sony.

The MF sensors are "only" 43 x 33mm, which is not that much bigger than ff. The mount is HUGE in comparison to maintain compatibility with ooooooold Hassy and other 6x6 lenses. I wonder how the Leica MF is designed? Does it use the Sony sensor? Huge mount? My impression is that the Leica MF is smaller than the Pentax 645z.

And the initial native MF lenses on the ~0.70 crop sensor would be sensational ArtMf+ primes, but "matched" to the sensor so the "weak link" and "resolution bottle-neck" was balanced ... lenses could just "feed the sensor". "Blow the socks off" the Otus and Arts on the D810 or A7r?

Still dreaming?
Integrate Sony Exmor technology with 14+ EV DR, and also allow MagicLantern's Dual-ISO to be native option to have DR nearer the 20+ EV of the human eye, with new RAW format. ML's Auto-ETTR and Auto-Dot-Tune MFA ... actually all of ML that made sense ... hire A1ex.

150+ DxoMark?

To me, 1 fps or even less would be plenty ... be the opposite from the 1Dx, which has a priority for fps. Maybe only shoot RAW, so eliminate CPU processing "wasted" for the JPEG processing pipeline. RAW histogram and blinkies from ML. ML's RAW video. Use all the CPU cycles for IQ and then AF, not foo-foo.

Flexible 16-bit RAW that allowed selectable compression, a'la what Sony seems to be doing, but much more flexible (and honest  :-\ ), and uses all 64k levels. Also allow 17+ bit RAW uncompressed. Not sure what the best default would be? 17-24+ bit RAW's could be huge, and difficult for CPU's to work with.

Third Party Manufacturers / A7cna? C)anon N)o A)dapter
« on: July 30, 2014, 06:59:00 AM »
Am I the only one who would be interested in a "pie in the sky" Sony A7 variant that:
  • directly accepted Canon EF lenses as native
  • no adapter involved, even with retro-focus wide angles
  • good-as-Canon 5d3 AF, AE, and high-ISO ... few or no compromises
  • good as Sony follow focus video, maybe with 4k, and maybe with enhanced Dual-Pixel
  • no issues with "filter stack thickness" (see LensRentals blog article)
  • ...
  • MagicLantern-like built-in Dual-ISO for astonishing DR near human eye (might require new RAW format?)
  • Other ML-like features, especially Auto-ETTR, RAW histograms, RAW video, motion detect, flexible intervalometer, enhanced Bulb, Auto-Dot-Tune (if applicable with mirror-less), several focus aids, programmable "P" mode, scripting, etc. Hire A1ex.
  • ...
  • Shutter shake issue resolved
  • Adapter to allow Sony E-mount lenses as non-native (but see below)
  • Depth-optimized power-zoom and/or power-prime wide angle that extends just as deep as possibly revised grip, to improve pocket-ability. To me, the grip and least-depth lens should be related, if not a match.
  • Reasonable price, such as existing A7r
  • ...
  • While I'm dreaming, retractable-prime lens available that was flush with a small-or-no-grip body so dimensions getting small enough to integrate smart-phone capabilities and Android.
  • Another dream: hybrid mount that accepts both EF and E-mount as native
  • Other?

Maybe Sony should buy Canon and release the SoCan?

Maybe Canon should buy Sony and release the CaSon?

Maybe they should merge, and develop a 5d3 size hybrid of the above with Exmor, and also the A7 size mirror-less A7cna describe above?

GB Shaw: I hear you say "Why?" Always "Why?" You see things; and you say "Why?" But I dream things that never were; and I say "Why not?"

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