May 01, 2016, 03:28:53 PM

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21
EOS Bodies - For Stills / Re: Dpreview of the 80D
« Last post by rishi_sanyal on Today at 12:21:05 PM »
Mt Spokane Photography and Don Haines- all excellent points, and duly noted. Thank you for your perspectives; they're ones we are definitely considering as we try and figure what is and isn't worth even attempting.

Rishi
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EOS Bodies - For Stills / Re: Dpreview of the 80D
« Last post by rishi_sanyal on Today at 12:17:13 PM »
I recon you were about two to three stops under where you could have been and still hold highlights in the evening sky.
No, our real-world comparisons are perfectly ETTR'd - there is not even 1/3 EV headroom.

That woooshing sound you hear is Sporgon's point flying over your head.

I guess you either understand saturation-based controlled tests, or you don't.
23
EOS Bodies - For Stills / Re: Dpreview of the 80D
« Last post by neuroanatomist on Today at 12:14:56 PM »
Let's say you are shooting at 600mm on a crop camera....
Who owns a 600mm lens? Not your average punter that will read reviews on DPR.

Your comments just get ever more asinine.  I'm sure nobody owns any of the multiple 3rd party 150-600mm zooms in the $800-2000 range.  Never see those at popular birding spots in dilbertland.    ::) ::)
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EOS Bodies - For Stills / Re: Dpreview of the 80D
« Last post by Don Haines on Today at 12:07:31 PM »
...
I thought it was a very well done review. My only complaint with it is the fascination that the camera industry has with ISO 100 and would have liked to see more tests done at high ISO like 3200 or 6400 so the readers get an idea of the relative merits of cameras when you start to push things a bit.....
...

What is this fascination that only canonrumors has with ISOs like 3200 or 6400?

We don't blame you for your lack of comprehension, as we all know there's always ample light and subjects never move...in dilbertland.
unfortunately, some us have had to shoot musicians with a F1.4 lens and crank the ISO up to 12800 to get the shutter speed down to 1/100 of a second because flash was not allowed...... Many of us do not buy cameras for their low ISO performance as we seldom use it. If you live your life at ISO 100, then good for you..... but be nice to those who need something more.

I'll bet that very few of the pictures from Neuro's 1DX were at ISO 100.... Myself, out of 34,726 pictures shot with my 7D2, 160 were at ISO100....
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I can log in without issue, for all the good it does.  In the old website, all my registered products were listed, including serial numbers.  After the refresh, View All My Products shows me just four lenses, one I had previously deleted after selling it, two lenses I never registered (bought used), and only one current lens.  The previously listed bodies, lenses (>10), flashes, etc., all disappeared.  Without the serial numbers being shown, there's really no point in adding products anyway.  Their website went from functional and useful to a complete waste of bandwidth. 
26
EOS Bodies / Re: Canon EOS 5D Mark IV Specification List [CR1]
« Last post by Maiaibing on Today at 12:01:49 PM »
Reliability of SD cards is no longer a problem. Given the possibility to perform an in-camera low level format, deterioration of SD cards performance over time is no longer an issue, too. Concerning compromises, every single aspect of camera design and engineering is a compromise; unfortunately for the 5D III users, the SD card was a big problem for many, and using SD cards faster than 45 MB/s was of no benefit, so I can understand the annoyance of many. But I'd be optimistic for the future in this respect.

Even in the 5DSR the SD card is very workable. You notice the difference if shooting a lot at once, but its not a big issue.
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EOS Bodies - For Stills / Re: Dpreview of the 80D
« Last post by dilbert on Today at 11:59:04 AM »
...
I thought it was a very well done review. My only complaint with it is the fascination that the camera industry has with ISO 100 and would have liked to see more tests done at high ISO like 3200 or 6400 so the readers get an idea of the relative merits of cameras when you start to push things a bit.....
...

What is this fascination that only canonrumors has with ISOs like 3200 or 6400?

The info for shooting at ISO100 is great for landscape photographers and those shooting with relatively short lenses in good light, but as the quantity of light drops, lenses get longer, and subjects start to move quickly you find that you need high ISO.

Let's say you are shooting at 600mm on a crop camera....

Who owns a 600mm lens? Not your average punter that will read reviews on DPR.

Quote
you generally need twice the focal length for the shutter speed so you are shooting at 1/1200th of a second

This is why you have IS and why the "stops rating" of IS is beneficial. A "3 stops IS" system brings 1/1200 down to 1/150.

Quote
...
your choices are to bring along a flash powerful to light up that bird 200 meters away, hope for the sun to turn supernova, or crank up your ISO.

A bird that is 200m away is going to be small even with a 600mm lens.

Quote
shooting in overcast conditions or early and late in the day gives you EV12... and OMG! all of a sudden you have to crank your ISO up to 3200 to keep your aperture and shutter speed....

Most people don't take photos with 600mm lenses on overcast days of birds flying.

To be honest, most everything looks crap on overcast days when there is no sunlight because colors are muted.  Or maybe those that shoot ISO 3200 and above don't like color very much? Would explain a lot.

Last time I checked the photos on the front page of flickr, there were vastly more photos ISO 100-800 than there were 1600 and above.

If low ISO represents the majority of photographs or at least the majority of photographs that people like (and thus end up on flickr's front page), it would seem to me to be a sensible move to talk more about camera performance at ISO 100 than at ISO 6400.

How often is it mentioned here that 80% or 90% (I forget which) of Canon DSLRs never see a lens on them aside from the one bought when the camera is mentioned. That's 80%-90% of Canon DSLRs that will never see a 600mm lens on them. Yet you want DPR to put more focus on a camera setting that will serve maybe 10% (probably) less of Canon DSLR owners.

So yes, canonrumors has an obsession with high ISO that is generally not representative of the wider population.
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EOS Bodies - For Stills / Re: Dpreview of the 80D
« Last post by neuroanatomist on Today at 11:50:33 AM »
...
I thought it was a very well done review. My only complaint with it is the fascination that the camera industry has with ISO 100 and would have liked to see more tests done at high ISO like 3200 or 6400 so the readers get an idea of the relative merits of cameras when you start to push things a bit.....
...

What is this fascination that only canonrumors has with ISOs like 3200 or 6400?

We don't blame you for your lack of comprehension, as we all know there's always ample light and subjects never move...in dilbertland.   
29
EOS Bodies - For Stills / Re: Dpreview of the 80D
« Last post by Orangutan on Today at 11:48:04 AM »


Yes, we've had many, many thoughts, conversations, brainstorms with industry leaders about how we could design meaningful AF tests. What we have now in reviews is just a stop-gap; we are tirelessly working on how to actually build a repeatable set of AF tests that covers a wide variety of shooting situations. Needless to say, it's ridiculously difficult, which may partially be why no one - to my knowledge - has succeeded just yet.

Rishi
I know just enough about autofocus to realize that there are just two many parameters involved, and one system may be more sensitive to one or more of the parameters than others. 

<snip>

The last thing I'd want to see is a poor specification for autofocus measurement where innovation was limited
by the need to score high on that particular test.

I have a lot of respect for your opinion, and I mostly agree with what you've said above.  The two points I would make are these: imperfect criteria should not stop testers from trying to develop more objective tests; and human experience is far more subject to error than imperfect tests.  Confirmation bias is unavoidable in anything that involves this much human experience. 

With a sufficiently large budget it would be possible to create an objective and reasonable test rig; I just don't know that any review site has the cash for it.


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EOS Bodies - For Stills / Re: Dpreview of the 80D
« Last post by neuroanatomist on Today at 11:47:19 AM »
I recon you were about two to three stops under where you could have been and still hold highlights in the evening sky.
No, our real-world comparisons are perfectly ETTR'd - there is not even 1/3 EV headroom.

That woooshing sound you hear is Sporgon's point flying over your head. 
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