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Messages - dilbert

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1441
EOS Bodies / Re: Will Canon ditch the AA Filter?
« on: January 09, 2014, 10:40:39 PM »
Well if you took photographs of real objects rather than test patterns on walls then you are very likely to not have to deal with it.
Real objects like buildings and striped shirts?

Were they photographs that you made?

Or just URLs that you found of other people's work?

1442
EOS Bodies / Re: Will Canon ditch the AA Filter?
« on: January 09, 2014, 10:39:15 PM »
Quote
If you're a fashion or wedding photographer then if you're careless...
What, if maybe the bride might be wearing some lace or a veil, or the groom a pinstripe suit? Because that only happens if you're careless?
Exactly!

The photographer should have know that it was going to happen and should have deliberately shot the photos out-of-focus...... :)

LOL! It's very easy to review an image on the back of your camera and adjust the shot if necessary to mitigate moire.

1443
EOS Bodies / Re: Will Canon ditch the AA Filter?
« on: January 09, 2014, 06:49:25 PM »
When Canon said the dual pixel is a game changer - perhaps this is part of the change???

Perhaps it is - using the individual pixels for phase AF may have necessitated the use of a weaker AA filter.

The image comparisons of the 70d vs. the 6d etc points to the idea that the best of Canon lenses can resolve the difference between the AA filter on the 6d and the smaller pixel size/weaker AA filter on the 70d and heck it looks pretty darn good.
Do you have a link to some images?

Here's one:

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=458&Camera=819&FLI=0&API=0&LensComp=458&CameraComp=845&SampleComp=0&FLIComp=0&APIComp=0
You can see that the 70D is decently sharp…and you can see that the weaker AA filters results in noticeable color moiré.  I don't want my game changed quite like that...

Well if you took photographs of real objects rather than test patterns on walls then you are very likely to not have to deal with it.

1444
EOS Bodies / Re: Will Canon ditch the AA Filter?
« on: January 09, 2014, 06:47:47 PM »
My understanding from colleagues that have used both the D800 and 'e' version is that once you have applied suitable sharpening to the one with the AA filter there is no practical visible difference. I've also heard, albeit second hand, that users of the Pentax K5 and the K5II (if that's what's the one without the AA filter is called) have found the same thing.

D3300 without one sounds to me to be a marketing decision. It's already seduced Dilbert by the sounds of it.

If current sensors were genuinely better without one I think Canon would have offered an option by now.

Well, almost none of the photographs that I take are ones in which moire would be a problem.

If you're a fashion or wedding photographer then if you're careless then you may have trouble but if you're a professional, you'll know how to identify and rectify it before you shoot.

The AA Filter effectively lowers the megapixel resolution of a camera, making the 5D2/5D3 with 21/22MP only about as sharp as a 15 to 16MP camera without an AA Filter.

1445
EOS Bodies / Re: Will Canon Answer the D4s? [CR2]
« on: January 09, 2014, 06:36:18 PM »
hahahahahaha

This is one of the funniest "rumors" to be posted ever!

Canon making strategic "leaks" to pacify its user base.

1446
EOS Bodies / Will Canon ditch the AA Filter?
« on: January 09, 2014, 07:34:52 AM »
In Nikon's latest DSLR that is available for sale, the D3300, Nikon have removed the Optical Low Pass Filter (OLPF) - also know as the AA Filter. This would tend to suggest that the reason for it being there in the first place (combating moire due to hamming) is not nearly as prevalent or significant as once thought. All of Nikon's latest DSLRs (D7100, D5300 and now the D3300) are minus the OLPF. I can't help but wonder if this will be the case for the D4s too!

Question now has to be, when will Canon stop including it in their designs?

1447
...
50mm lenses other than the Otus are objectively terrible. It's a fact and it's not limited to the 50mm f/1.2, the f/1.2 is just a lens that happens to add insult to injury, it's a lens that takes an already weak segment and says "let's compromise this even more". Again there is very little to advantage to f/1.2 over f/1.4 due to the way digital sensors absorb light from fast lenses, you certainly can't really see a major difference in bokeh as the samples on the last page showed, so basically the 50mm L means that Canon ignored making a 50mm f/1.4 L that had good contrast color and bokeh. That is a tragedy.
...

So I don't know much about what is or isn't a double gauss design but what I do know that is the Otus is significantly different to other 50mm lenses by it being long rather than short.

If the Sigma is also a long lens then wouldn't that suggest that it too is not a double-gauss design?

1448
It's interesting that no one here has mentioned the D4 lock ups...there's a number of uk pros who have been so frustrated with their D4's and had to switch to a D800 back up camera because their D4 units are so unreliable. I think this is the most likely reason that Nikon have pushed out the D4s so quickly. I dare say that a lot of pros will have their Nikon D4 cams swapped out under warrenty by Nikon. In the mean time, there's a growing user base for the 1Dx which are delighted by their cameras.

Well it just goes to show you how many folks from this website hang out (or read) professional photographer forums - especially where those using Nikon write. And yes, if that kind of problem exists then I can well imagine that your rationale is close to spot on.

1449


If the autofocus gives you a blurry image, isn't that the fault of the shooter? Or was there some other problem that explained why Rob Gilbraith was reporting lots of issues with the Canon 1D3 AF that Canon never seemed to be able to fix?



Canon couldn't repeat Galbraith's "issue", not really surprising when Galbraith couldn't repeat his issues when Canon sent factory staff to work with him either, they even went to Mexico or somewhere because he said he could only get it to do it at certain temperatures, so they took him to the temperature he said, and he still couldn't get consistent repeatable "issues".

And where is Mr Galbraith in the photo world now? Ah yes, no longer a pro photographer, no updated website, but a teacher in Canada.

Which is exactly the point: issues with AF in a pro level camera are far more likely to be the shooter than the equipment.

Quote
In sharp contrast (pun intended) to the D800 AF issues that were 100% verifiable, and repeatable, in any temperature, by a chimpanzee.

Since we're talking about the D4s and not the D800, this point is of no consequence to this discussion unless you'd like to use the 5D Mark II's AF as the means by which to judge the successor to the 1DX. Just saying.

1450
If you can't recover highlights, who cares if you have two extra FPS and built in GPS with Insta-Facebook upload?

If you are shooting at ISO 3200, does the D4 still have better DR?

If your autofocus gives you a blurry image, who cares if you have an extra stop or two of dynamic range?

If the autofocus gives you a blurry image, isn't that the fault of the shooter? Or was there some other problem that explained why Rob Gilbraith was reporting lots of issues with the Canon 1D3 AF that Canon never seemed to be able to fix?

Quote
If you miss a key moment because your frame rate was too slow, who cares if you can't recover a blown highlight?

So it is a good thing that they keep working on those JPEG algorithms, yeah?

Quote
If you need a 17mm TS/PC lens, or a hand-holdable 600mm f/4 lens, how useful is a sensor with better low ISO DR?

For some reason, everyone that I've seen shooting with a 500mm or 600mm lens has it mounted on a monopod or tripod. Could it be because they actually use it for work and shoot with it for more than a few minutes each day and don't have the time to become Mr Universe in order to work without a support?

1451
You underestimate the importance of a good JPEG algorithm for professional sports photographers who shoot 1000s of pictures a day and don't have the time to do raw conversion.

So the JPG output from the D4 is subpar?

You're asking the wrong person but I'll add that Canon also make similar statements in DSLR camera releases ("lower noise in JPEG" or whatever) where JPEG image quality is better because of X and/or Y. Obviously JPEG isn't important to you otherwise you'd be more interested in what they're saying rather than trying to kill it.

1452
That's what I was thinking too. "Don't go guys... we have something GREAT in store for you. Have faith!"

Yep, we have the D4s - it has a new Expeed processor that will really make your jpg images pop, because we know none of you out there shoot NEF files.  Oh, and better AF.  Better how?  Just better.  Trust us.

You underestimate the importance of a good JPEG algorithm for professional sports photographers who shoot 1000s of pictures a day and don't have the time to do raw conversion.

1453
Yeah, but the IS is rumored to be 1.8 or even 2. Now, will it be remarkably better than my 50 f/1.8? Dunno, the 35 f/2 IS has had me thinking for the longest time, and I might just pick it up some time, but I wish they kept the f/1.4 and just made the 50mm better- sigh!

I wouldn't be surprised if Canon's new 50/f2 IS replaces *BOTH* the 50/1.4 AND the 50/1.8.

i.e. the cheap options will disappear.

1454
Really nice...!! If the quality is mutch better then the old 50 1.4.. I'll change it!

But... why Sigma hasn't weather sealed lenses?!  :-X  :-\

Posted just last week:
http://www.canonrumors.com/2014/01/are-metal-mounts-better-than-plastic/

"But I haven’t seen one manufacturer yet tell us exactly what weather their lens is sealed against. Snow? Rain? Sunshine? Wind? Well, it can’t be wind because the lenses we spend the most time taking dust out of are mostly ‘weather sealed’."

So think of "weather sealing" as a marketing gimmick that lots of people buy into.

1455
Yes! Love my 2 ART lenses, now they just need to make that UWA zoom

+1

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