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Messages - ecka

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271
Lenses / Re: Zoom vs Primes?
« on: December 11, 2012, 03:17:08 PM »
Zooms for work.
Primes for pleasure.
;)

272
EOS Bodies - For Stills / Re: Only 1 lens
« on: December 11, 2012, 03:01:00 PM »
In a similar situation, I would (probably) replace all my DSLR gear with something like PowerShot G1 X.
Or, if the situation was temporary (like 3 to 6 month), then I'd keep the 5D2 with 50/1.8II.

273
I am also worried about missing out on the advantage of having a cropped sensor. 

I signed up an account just to comment on this.  There is *no* advantage to a crop sensor.  How would you feel if you had FF camera, but the camera cropped the picture before it saved it to the card?  You would feel cheated!  Same deal, only it's a physical limitation.

Source:  I am a senior optical engineer.

I agree. Smaller sensor size is not an advantage, it's a compromise. However, higher pixel density is an advantage for cropping and APS-C sensor is physically limited to do only that - capturing 40% of the FF image.

274
EOS Bodies - For Stills / Re: Using 1DX in very low temperatures
« on: December 08, 2012, 07:10:54 AM »
-10°C to -15°C are not extreme temperatures for Moscow. -20°C to -40°C are :D
However, Canon's recommended working temperature range is 32-104°F/0-40°C

275
Lenses / Re: Best Value "Normal" Lens for 6d?
« on: December 02, 2012, 09:37:19 PM »
40/2.8STM is a good value lens for general all-around non-sports use and it seems like this lens will be one of the kit options for 6D.

276
EOS Bodies / Re: 6D wi-fi controlling video?
« on: December 01, 2012, 08:07:08 PM »
Review Canon EOS 6D Wi-Fi [Thai] Small | Large


277
Most of the 6D buttons are on the right side of the camera, which allows to operate menus (like playback or delete) using only right hand without switching from the "ready to shoot" position.

278
EOS Bodies - For Stills / Re: Here's my sacrilegious prime factors
« on: October 16, 2012, 11:51:23 AM »
40 Pancake
(missing lens)
100 2.8 Macro

or is it…


(missing lens)
40 Pancake
100 2.8 Macro

??????????

It depends on sensor size. You need something wider than 40mm for APS-C.

FF (5D3)

40mm is pretty close to 35mm, but I don't think that I'd need another must-have prime between 40mm and 100mm for the trinity, which is 35~50 / 70~100 / 135~200.

279
EOS Bodies - For Stills / Re: Here's my sacrilegious prime factors
« on: October 16, 2012, 05:18:34 AM »
40 Pancake
(missing lens)
100 2.8 Macro

or is it…


(missing lens)
40 Pancake
100 2.8 Macro

??????????

It depends on sensor size. You need something wider than 40mm for APS-C.

280
EOS-M / Re: Canon EOS-M to Ship Today in North America
« on: October 15, 2012, 03:52:10 PM »
Waiting for Canon to release a FF mirriorless with classic chassis. Until then....no more P&S nor crop sensor.
Amen  ;D

281
EOS Bodies - For Stills / Re: The Unholy Trinity of Non-L Primes?
« on: October 10, 2012, 05:55:25 PM »
For FF:
EF 40/2.8 STM
EF 85/1.8 USM
Σ 150/2.8 HSM Macro

For crop:
EF 28/1.8 USM or Σ 30/1.4 HSM
Σ 50/1.4 HSM
EF 100/2.8USM Macro

So, I'm guessing that you aren't recommending any prime wide angles on a FF camera  because they suck haha. I'd be better off getting an ultra-wide variable zoom (ex. 17-40mm or 12-24mm) and a collection of primes?

That's not the case. I'd recommend Samyang 14/2.8UMC for FF, but we are talking about the trinity, which means 3 lenses, not 4 :)
For crop - yes, get the zoom ;)

282
EOS Bodies - For Stills / Re: Future of APS-C
« on: October 10, 2012, 04:26:05 PM »
I am talking about D7000 having no advantages over D800 other than price.

Ok, but you're the only one talking about that...  One theme in this thread is the 'reach advantage' of APS-C over FF, and while in the specific example you've picked, there is none, in general, there is.  I could as easily say that the 8 MP 20D has no reach advantage over the 21 MP 5DII...and that's an equally meaningless statement if used to support the argument that APS-C does not have a reach advantage over FF, which is the argument you're making.

You see, that's the mystery. :) Why I am the only one talking about that? It seems like nobody cares about making things right. If you want a better future, then things have to change.

Quote
If Sony can make 24mp APS-C sensor, so they can make 54mp FF sensor as well. :)

Maybe.  But they haven't...and until they do, the statement is irrelevant, and APS-C still has an apparent reach advantage that translates to the ability to get more pixels on target when you're focal length limited.

Yes, they haven't ... and that's the problem :)

283
EOS Bodies - For Stills / Re: Future of APS-C
« on: October 10, 2012, 01:52:16 PM »
D7000 - 16mp APS-C
D800 - 36mp FF - 16mp in 1.5x crop mode (if it's not the same pixel pitch, then it must be pretty close)
D600 - 24mp FF - 10.7mp in 1.5x crop mode

Forgetting something?

D3200 - 24mp APS-C

So, what Nikon FF camera delivers a 24mp image in 1.5x crop mode, thus negating the 'reach advantage' of APS-C?

I am talking about D7000 having no advantages over D800 other than price. If Sony can make 24mp APS-C sensor, so they can make 54mp FF sensor as well. :)

284
EOS Bodies - For Stills / Re: Future of APS-C
« on: October 10, 2012, 01:35:34 PM »
You can see that in my previous post I was talking about D800 vs D7000 and there are no if-s.

Sorry, I must have missed that.  Let's check:

...FF can do everything as good or better than APS-C, no need to have both. If 5D3 had 46mp sensor, then you could crop 18mp image out of 46mp and it would be just as good as your 7D image and much better when you don't need to crop it.

Nope, there's definitely an 'if' in there.   :P

Now, earlier, you stated:

Not the reach - because, when both formats have the same pixel pitch (like D800 and D7000), we can just crop the FF image (or shoot in crop mode) and get exactly the same result as if we shot it using a crop sensor camera. I'm not a big super-telephoto fan...

...but again, I don't see the relevance because there is no FF dSLR that matches the pixel pitch of current APS-C dSLR offerings (18 MP from Canon and 24 MP from Nikon, the latter being much higher than the 16 MP example you're using!).

Bottom line, I with agree that APS-C really comes down to $$ - both for bodies and for lenses.  If you can afford a longer lens, you'll get better IQ with that longer lens on a FF camera.  In most cases, even without the longer lens, cropping the FF image will yield equivalent IQ, merely fewer megapixels.  The only time when one could argue that the APS-C 'reach' advantage is actually necessary is when you need a framing tighter than the longest available lens, even assuming you can afford that lens, and you need the full resolution image for printing large, etc.

I'm sorry for my bad english. However:
D7000 - 16mp APS-C
D800 - 36mp FF - 16mp in 1.5x crop mode (if it's not the same pixel pitch, then it must be pretty close)
D600 - 24mp FF - 10.7mp in 1.5x crop mode

Yes, Canon doesn't make 46mp FF cameras, not yet. If they will, then 7D would lose the reach advantage over FF, because you'll be able to crop those 46mp to get the same angle of view at the same 18mp resolution.

285
EOS Bodies - For Stills / Re: Future of APS-C
« on: October 10, 2012, 06:27:44 AM »
The only reasonable APS-C advantage is the price.

If we stop right there, I agree.  You also stated, "If 5D3 had 46mp sensor, then you could crop 18mp image out of 46mp and it would be just as good as your 7D image and much better when you don't need to crop it," which is tehnically correct, but practically irrelevant since the 5DIII does not have 46 MP, nor does any currently available FF dSLR.  By your logic, if the Canon 5200mm lens was the size of an 400/5.6 lens and could be mounted on a Phase One IQ180, and that Phase One could shoot 10 fps at ISO 25600, I'd have the perfect birding setup.  See how 'if' is pretty unhelpful, sometimes?   :P


You can see that in my previous post I was talking about D800 vs D7000 and there are no if-s.
I switched to 7D vs 5D3+imagination, because the person I was replying to (Bob Howland) is using those two cameras. I also stated that "most of APS-C advantages are 'synthetic' and $-related". Not making 4.3μm FF sensor is a 'synthetic' 4.3μm APS-C advantage. They have the technology, but they decided not to use it, because they would make more money this way. Why? - Because most consumers prefer speed (high ISO and FPS) over resolution. 20-22mp may be enough, but they shouldn't stop there. We must wait till they figure out how to make both sides happy. Highest resolution + more powerful CPUs + pixel-binning may be the answer.

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