May 23, 2015, 05:19:45 AM

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31
7D MK II Sample Images / Basketball with a 7DII
« Last post by TexPhoto on May 22, 2015, 11:53:17 PM »
Untitled by RexPhoto91, on Flickr

Untitled by RexPhoto91, on Flickr

Untitled by RexPhoto91, on Flickr

Untitled by RexPhoto91, on Flickr

Untitled by RexPhoto91, on Flickr
32
Lenses / Re: Anyone have experience with EF-S 24mm STM and a gear overhaul
« Last post by Terry Rogers on May 22, 2015, 11:47:53 PM »
Thank you all for your advice. It's been really helpful.

Unfortunately, a body upgrade is out of the picture. Otherwise I wouldn't hesitate to upgrade to the 70D. One of these days I'll get around to testing my focus to see if that is in fact the issue. I bought my 17-55 used, so no return policy there. But I figure I could sell it for what I paid for it.

As for switching from the zoom to primes... that is my biggest concern. That is why I sold my primes and went to the zoom... and now I want to go back!! lol. So I'm not really sure what I want anymore, other than a tele lens. Which is out of the question unless I sell my 17-55... which I don't want to do unless I have to. So many decisions, so little money.

I used the body grip on my t4i because the 17-55 is WAY too big for the body. Very front heavy and the grip balances it out more and gives me a better hold.

Not yet sure where I'll land on this. But again, ty for your opinions.
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I really like my current 6D but equally I know its limitations. Firstly large areas of grey sky correctly exposed often show pattern banding which no amount of adjustment in Lightroom will eliminate this type of artefact I don't see on Sony sensors and is a trait I find in the 7D and other Canon cameras. Secondly the GPS if enabled should be OFF when the camera is turned off or have the ability in the menu to select the option. Thirdly even 19 point AF would be an improvement this is one area Canon were nothing short of "mean" with its specification. Lastly regardless of what others think in Landscape you can never have enough DR and the human eye / brain can handle at least 20 stops so at 11 / 12 stops Canon has a long way to go.

In all other respects the 6D is a very worthy camera and greatly under estimated as a travel / landscape tool.


Even though I dislike the old worn 19pt system, i agree it would help....i mean, you cant get much worse. I used the 6d for people and landscapes, and the sharp photo ratio was roughly half. Yes, half, as i am not a center point shooter. This year, i bought a 5d3. the hit(rates) keep on coming..im happy now...at least until the 5dmk4 hehe.

Couldn't agree more here. Using the 6D for nearly 2 years has taught me to never rely on anything but the center point if you want sharp focus... and of course that sharp focus you achieve will be offset by recomposing.

Even for portraits where the subject is standing perfectly still, I crave for a 5DIII with a cross-type focus point right on the eye without having to recompose.

The 19 point system would be fantastic for the 6D, but I certainly hope they can offer something a little more for the 6DII. The D600 (the 6D's main competition) had 39 focus points (9 cross-type)...
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Post Processing / Re: Thought I understood it, PPI/DPI
« Last post by Ryan_ on May 22, 2015, 11:27:38 PM »
The confusion of DPI and PPI comes down from from printing & graphic design industry (I've worked in both).
It always confused the heck out of customers. DPI (dots per inch) referred to the printer line screen (mostly, theres more to it and it will confuse even more) and was relevant when doing color separations and going to plate for color press. Black and white it could determine gray scale/shadow depth and contrast when printing newspaper.

PPI is mistaking just because people were so use to saying DPI, but when talking sensor resolution PPI is what is actually meant.

Now when you have a print done, it comes of an ink jet or a dye sublimation. On the former, dots are random and so densely populated to the human eye they may as well be continuous tone. Dye sub, is pretty much continuous tone.

With theses type prints, especially back in the day, PPI is important because under 200 PPI the human eye can start to detect the image is made up of millions of squares (pixels). 240ppi use to be the ink jet default since it was 20% over the threshold of 200dpi and it saved buffer time and RAM space. So with most printers and there supplied printer software, they'd essentially, through software, throw out the extra pixels if you actually sent a 240+ppi or higher image. Modern printers I'd imagine are faster and isn't an issue but as people we rarely accept change and will think everything is the same it was 10-15 years ago.

Now where 300ppi comes from is the print standard set in Europe some years ago of 12pixels/mm when you do the American conversion comes out to 304.8ppi. which for simplicity has been bumped down to 300ppi. I'd guess this was due to certain art mags and Nat Geo types they wanted everything to be very sharp (they even used higher line screens) so a 33% increase over the threshold made sure, to the most discernible eye, they'd look like photographs and not printed repros.

All that said, for prints 30" (widest) and under, if you can achieve 200ppi you will be good. You start to go over you can get away with a little due to the distance things need to be viewed.

I've seen breath taking prints from a 12MP 5DI blown up to 60". The particular print I' thinking of was simply sent to the printer and software handled the up res/scale.

Longer story short, if you are shooting with a 5D3 and haven't cropped away half of it you should be solid even at 70". If you printer knows what they are doing.
Thanks for the input kbmelb! I'm glad so many have a say on this, its definitely helping me understand more.
So you mentioned I could be solid even at 70". Then what do you think of the 2 photos I posted (abound half way down/up the previous page of this thread)? The first photo being the digital sample of what a lab told me the photo would look like at 70", and the second being a very small center crop at 100% of the actual image. Do you think the sample is accurate? I've dealt with the lab before but only printed up to 30". However the quality was great and their customer service was just as great and I do feel they are reputable but best to get other opinions I suppose. As of now I still plan on telling client that 60" is max, but I'd love to run with 70" if possible. Can't wait to see what happens, so at least I will know for future requests.
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Third Party Manufacturers / Re: Sony buyers Beware!!
« Last post by ritholtz on May 22, 2015, 11:15:02 PM »
There is a lot of talk on other forums about Sony outsourcing everything to precision or some third party vendors.
I think, Sony will direct you to precision for any repairs. Lot of people are not happy with the delays. Is it the case with Canon?
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EOS Bodies - For Stills / Re: 5DS-R DR test on DPReview
« Last post by jrista on May 22, 2015, 10:31:21 PM »
I'm not sure how advanced NR is going to bring back the blown out windows, but have fun!

The outdoor highlights were purposely clipped in this image, as I stated in my previous post, to ensure full utilization of both cameras dynamic range.

Yes, I noticed that.  Interesting that the parameters of your demonstration specifically preclude testing your belief that the a7R could capture the full scene DR, but I know that wasn't the point you set out to make.

The highlights aren't clipped all that much. It's maybe a quarter of a stop at most, it shouldn't even be that much. When I was taking the shots, I only upped exposure by a third of a stop to get the highlights to clip, and they had some headroom before I did that. A quarter of a stop isn't going to make a lot of difference to the shadow performance, for either camera. I plan to get the A7r II or maybe A9 (or whatever that higher end model ends up being called...it's supposed to be aimed more at pros, should have better weather sealing, be more rugged, etc.) in the future. I'll be happy to get some more 'realistic' exposures then.

Before that even, I plan to get the A6000, and I could do more testing with that.

BTW, the parameters of my testing were actually set by members of this forum, so many months ago when I actually rented the camera and did the test.  There were several members that insisted that a DR test was invalid if the highlights weren't just slightly clipped, as there was a rather extensive argument at that time over the proper way to expose a step wedge for DR testing at the time, and that bled over into my simple testing. My personal parameters would have been to keep the highlights under the clipping point, as that's how I actually shoot.
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EOS Bodies / Re: Canon EOS Rebel SL2 Coming in August? [CR1]
« Last post by drmikeinpdx on May 22, 2015, 10:26:59 PM »
These little cameras are cute and pack a lot of function in a small package. I can almost see myself buying one.

Unfortunately, most of the lenses are still quite large.  So until Canon finds a way to miniaturize more lenses for the crop-sensor cameras, I don't see a lot of point in buying one of these tiny gems.   I guess you could stick to the two pancake lenses, but would be too limiting for me.

I will stick with my Rebel bodies for most travel photography and my S-class Powershot cameras for pocket carry.
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Landscape / Re: Post Your Best Landscapes
« Last post by firegs on May 22, 2015, 10:25:53 PM »
Are you using Topaz Labs Denoise? I'm seeing a *ton* of softness and strange artifacts that I've seen mostly from TL Denoise...

No - pls explain...?

Take a look at these 100% crops. Theres definitely some sort of denoise processing going on here.
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EOS Bodies - For Stills / Re: 5DS-R DR test on DPReview
« Last post by neuroanatomist on May 22, 2015, 10:20:52 PM »
I'm not sure how advanced NR is going to bring back the blown out windows, but have fun!

The outdoor highlights were purposely clipped in this image, as I stated in my previous post, to ensure full utilization of both cameras dynamic range.

Yes, I noticed that.  Interesting that the parameters of your demonstration specifically preclude testing your belief that the a7R could capture the full scene DR, but I know that wasn't the point you set out to make.
40
Landscape / Re: Post Your Best Landscapes
« Last post by Click on May 22, 2015, 10:16:57 PM »
Shot I got today on a hike in Montana.  Nine shot panorama, Canon 5D Mkii and 17-40mm. 


Yes, very nice shot, Andy. Well done.
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