October 01, 2014, 05:18:06 AM

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Messages - 3kramd5

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1
Third Party Manufacturers / Re: iPhone 6 gets an Exmor
« on: September 29, 2014, 06:05:50 PM »
Er... Does it shoot RAW?

Probably not. Exmor should improve DR across the board though

Anecdotally, my HTC One (no clue who builds the sensor) seemed to have significantly wider DR than my iphone 6 has. The former's camera was generally awful, but occasionally I'd look at a picture and truly wonder if I could replicate it with one of my SLRs in a single exposure.

2
Not much to show for the rental time, other than more familiarity with the A7r. I still think it's a mixed bag, with the mix leaning towards "Needs Improvement."

Me too. I'll keep mine for situations where I really want resolution (which tend to be situations where I'm sitting around with my tripod waiting and thus have the time to work around the interface), but it is quite ponderous to use. 95 times out of 100, I'll take a 5D.

3
EOS Bodies / Re: Canon Says Higher Resolution Sensors Are Coming Soon
« on: September 25, 2014, 05:13:09 PM »
interesting. I postprocess my images to make them look the way I want them to look. :-)
Which is not necessarily the way I saw a scene. Or imagined it. Or what the scene would have looked like to some other people.  :-)

Exactly.

And I shoot thin (macro) DOF sometimes. But even my f/2.8 portraits don't look on screen/print the way the model and particularly what's behind the model looked when I saw them.

I also blur moving water, use polarizers, etc.

If every photo I shot looked like what I saw, I'd have a pretty boring library :P

4
EOS Bodies / Re: Canon Says Higher Resolution Sensors Are Coming Soon
« on: September 25, 2014, 03:13:55 PM »
Thought for you guys: how much of this 'problem' with Canon being so far behind is due to the rising prevalance of Photoshop and significant amounts of post processing? 

I have never been huge on all the PS work that a lot of folks do to their work.  To me I like pictures that look like what you saw when you took them.  But, that's me. 

Still, because one can do so many kinds of things in PS, it seems like at some point we have started to measure cameras against how far they allow you to take PS.   PS has become where the image is created, and not the camera.  The cart is before the horse, no?

Just food for thought.
Brian

No.

I post-process every image, and that's because I like the final result to look like it looked to me.  The out-of-camera JPEG or default raw conversion rarely looks like that.

That's exactly what I was about to say. Postprocessing is usually essential (to my eye) to get an image that resembles what I saw.

I think you guys are probably in the minority. I read "I want it to look like what I saw" quite often, but then the people writing it load up their flickr streams with razor-thin DOF and desaturated images, water blurred to a fog and polarized skies. Things I have personally never seen in real life.

5
Canon General / Re: DRones vs. anti-DRones: how to resolve the controversy
« on: September 25, 2014, 11:35:22 AM »
I for one hope that canon doesn't start procuring Sony sensors for its SLRs; that's too many eggs in one basket. Aptina, Samsung, anyone other than Sony.

However, if low-ISO dynamic range becomes a major market differentiator, I suspect Canon is more comfortable with its vertical integration and will invest in a new fab.

6
EOS Bodies / Re: Just for Jrista: 2014 Market Data
« on: September 22, 2014, 03:45:11 PM »
A 1DX with a 400mm f2.8 IS MkII and a trip to Manhattan beach doesn't make you a surf photographer.

Agreed. Surf photographers know to aim about 50 miles further down the 405. :P

7
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: September 19, 2014, 01:43:38 PM »
The only reason (aside from corporate pride)

Yah, that would be almost as bad as farming out the heart of the camera (the sensor) to another firm!

;)

I think Nikon would rather sell Nikkor lenses than facilitate people using Canon lenses on their bodies.

8
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: September 18, 2014, 11:08:37 PM »
Why is someone whose portfolio is full of glorified snapshots so concerned about his equipment?

Hacks need to make money too.

9
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: September 18, 2014, 08:29:39 PM »
Are you saying you can slap on a fast prime, focus dead center, and then rotate ("recompose" generally involves much more rotation than translation, obviously) the camera about its own axis so the initial subject as seen by the AF unit goes from one side of the frame to the other (or at least from the borders of the PDAF sensors) and significantly out of the DOF and it will track it?

If so, that's cool and I do not believe my 5D3 could do such.

LOL, thank you for writing this :) And, yes, that's exactly what I'm saying. Again, just watch this video:
https://www.youtube.com/watch?v=C5J7zALyHic

It doesn't look like the camera is rotating much (maybe 5 degrees with a rather wide DOF).

I'll give it a shot this evening with a 5D3 just to satisfy the curiosity.

Okay, it's hard to replicate since my camera doesn't illuminate the point it's using during tracking, so I took some snaps at extremes and, looking at them in LR, it did fine.

However, putting a pronounced object like that on a continuous white background isn't really indicative of real world performance; that's about the easiest scenario imaginable. With a complicated background, I don't know how well it would keep up.

10
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: September 18, 2014, 04:00:43 PM »
1080p is great, but 4K is better, how much better?

It depends on size and viewing distance. Weird. ;)

11
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: September 18, 2014, 01:29:53 PM »
Are you saying you can slap on a fast prime, focus dead center, and then rotate ("recompose" generally involves much more rotation than translation, obviously) the camera about its own axis so the initial subject as seen by the AF unit goes from one side of the frame to the other (or at least from the borders of the PDAF sensors) and significantly out of the DOF and it will track it?

If so, that's cool and I do not believe my 5D3 could do such.

LOL, thank you for writing this :) And, yes, that's exactly what I'm saying. Again, just watch this video:
https://www.youtube.com/watch?v=C5J7zALyHic

It doesn't look like the camera is rotating much (maybe 5 degrees with a rather wide DOF).

I'll give it a shot this evening with a 5D3 just to satisfy the curiosity.

12
EOS Bodies / Re: How can we improve on 5D3 to 5D4?
« on: September 18, 2014, 10:53:57 AM »
actually i wasn't kidding at all. i get the sense i know a great deal more about Ti and carbon fiber than you guys do.

It's possible, I'm neither a metallurgist nor a materials engineer. I just know enough to make appropriate desicions about which materials to use in design applications.

not only that you guys must not very active people

Interesting leap.

tons of stuff is made from these products these days. you certainly can buy a Ti carbon weave racket just about anywhere.

There may be many tennis rackets which utilize carbon fibers and titanium to some degree. Much of it is marketing, a far cry from truly meaningful materials, like "Carbotanium".

What do you suppose is the fiber volume ratio of a GFRP/Ti weave racket available for $30?

expensive? well, not in the amount we're talking about for a camera body.

Have you looked at a camera body recently?

Could you lay one up? Sure. But it's far more cost effective to cast and machine.

In the fields of racing/aero/space these items have been around for decades

Three examples no rational person would consider inexpensive.

i know what i'm talking about. berylium? please, how about econel? you don't know nuthin' about metals or tennis.

You know enough to list some materials, misspelling both. Inconel? Good old 6Al-4V (I presume your expertise means I need only spell out the alloy rather than the raw material) has a better strength to weight ratio.

AlBeMet trounces them both, and is easier to machine.

If the specific application doesn't require great corrosion resistance and thermal consistency, you'd be crazy to use Inconel with all else being equal.


13
Lenses / Re: Lens 'resolving power' vs sensors.
« on: September 18, 2014, 09:48:26 AM »
Whoa..... all of this technical talk is confusing me. Let's imagine that canon releases a 36mp full frame dslr,  will that render my "less" resolving lenses such as the 35mm 1.4L, 16-35ii and 85mm 1.2L to doo doo?
I've heard that the 24-70ii and 70-200ii are high resolving lenses and shouldn't have a problem. I wonder what happened on the Nikon side with using the same lenses on the D800 hmmmm.....

http://www.dxomark.com/Reviews/Nikon-AF-S-Nikkor-500mm-and-600mm-f-4G-ED-VR-lens-reviews-legendary-performers-in-the-range/Nikon-AF-S-NIKKOR-500mm-f-4G-ED-VR-fights-off-both-Canon-and-Sony

The "Legendary" Nikon 500mm F4 flops  on the D800's 36mp.

Heh, so the Canon 500 has equal or better metrics to the Nikkor 500, yet their composite score is the same because... "the excellent dynamic range of the Nikon D800 sensor."

Sure, why not?

And presumably the Sony a99 has dynamic range similar to the D800, so why doesn't the Sony lens, with similar metrics to the Nikkor lens on a higher-than-Canon DR sensor get the best score rather than that lowest?

Again: heh

14
EOS Bodies / Re: 7d-II Pushed images...
« on: September 17, 2014, 04:05:42 PM »
Looks like the photographer forgot to leave the lenscap on.

15
EOS Bodies / Re: High ISO Samples from the Canon EOS 7D Mark II
« on: September 17, 2014, 09:32:53 AM »
at least he has his gut to post his out of focus image?  how about you?  take your best focus camera and try to beat me with my classic canon 7d which number of people in here complain about auto focus...  post your similar sharp image like the one below which was taken with canon 7d and 24-105mm f/4...

I like the flower photo - the light is quite nice, but am I the only one who fails to grasp the point you're trying to make with it?

The subject of this thread are some hastily taken photos with questionable focus by a guy who it appears is attempting to drive traffic to his website where he sells stuff.

How is that gutsy? And how did that turn into a sharpness competition?

I don't get it.

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