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EOS Bodies - For Stills / Re: 1DX vs 1D IV ??
« on: January 19, 2012, 10:31:47 AM »
(I think) Dr Neuro explained fairly persuasively that the x1.3 crop on the 1D4 vs the FF 1DX is essentially meaningless. Cropping a 1DX file in post to a x1.3 value will deliver a file almost indistinguishable from the 1D4 file. Want to chime in here Dr Neuro?

No chance of this i'm afraid
have a look at the iso samples indicating the crops here with the 18MP vs 16MP

edit: if you apply a 1.3 crop to the 1Dx resolution of 5184 x 3456 you get 3987x2658 which is 10.6 MP or basically the 1Dmk3

The ISO samples on the TDP review aren't relevant to this issue - those are scaled equivalently across sensor resolutions (i.e. the more MP, the bigger the image).  The issue being discussed is what happens when you crop the FF image to the FoV of a 1.3x crop, or even a 1.6x crop.  The answer is that for approximately equivalent sensor technology, the images aren't too different in terms of IQ, although obviously with the cropped image you end up with far less resolution after cropping.  The crop magnifies the effect of IS noise, alters the DoF along with the framing, etc. 

Put another way, if you buy a FF camera but then have to crop all your images to 1.3x or 1.6x FoV, you're throwing away the IQ advantages of FF over the smaller sensors, and so you might as well just get the cheaper camera (from an IQ standpoint).  Conversely, if you only need to crop a few of your images, the IQ with the FF will be a decided advantage.  That might mean getting longer lenses to compensate for the loss of 1.3x crop...which suits Canon just fine...

So if I am able to frame what I need with FF or the 1.3, then my IQ (image quality, not my intelligent quotient :)) will be NOTICEABLY improved over my 7d images?  I am not a pixel peeper but when I enlarge posters to 16x24, should I expect cleaner/sharper images, or at this size, is it only a theoretical advantage?

EOS Bodies - For Stills / Re: 1DX vs 1D IV ??
« on: January 19, 2012, 09:30:35 AM »
Appreciate all the feedback, but would like even more personal experiences with the ISO/AF 'differences' between the 7D , 1dIV and speculation about the 1Dx. 

With only a single weekend's experience with the 1dIV, swapping back and forth with 7D, I didn't see a DRAMATIC improvement in capture rate of the AF with 1dIV.  Shooting moving targets in the 'dark', I use ZONE selection with the 7D sometimes, and overall I don't miss many shots b/c of AF.  However, with all the individual points on the 1dIV, it seemed to take me longer to cycle through to where I needed them.  Maybe I just needed to get more familiar with the 1dIV? but i missed the ZONE and 4 point expansion options.
To be sure, the 1Dx is bringing the AF to a new level, so that is definitely a plus there over the 1dIV.

With respect to ISO / low-level performance though, I obviously saw improvement between the 7D and 1dIV.  Shooting with the 7D at max 3200 mostly, I have come to deal with the noise, but am limited in really dark gyms.  I was able to shoot 4000-12,800 with 1dIV in this dark environment, but did have quite a bit of noise, most of which cleaned up in ACR pretty well. But with hundreds of shots, it does take time.  What I should have done was take the same type shot with both bodies at the same ISO to compare noise but this was my first 2 body shoot and I was simply too busy focused on having 2 different lenses/options available and didn't really plan enough on a head-head comparison, my bad.

Will the 'improved' 1Dx ISO performance mean:
1).  I will have less noise to clean at 2000-3200, or
2).  I will be able to capture shots in the dark gyms where I currently don't get anything very usable.
3).  A little of both (?) 

Other features/benefits aside, how much better can we expect the 1Dx to (out)perform the 1dIV ?  With my shooting style and gym limitations, I can accommodate to the FF vs 1.3 vs 1.6 reach / lens issues with my arsenal, and I am improving my positioning and shot planning at every venue, but I am wavering as to the real-world improvement in the image quality.  Both will be better than my 7d, but HOW much??


1dIV ISO 6400  135 @2.2 Tv in a really dark gym

PVC18Yellowreedits1D093 by PVC 2012, on Flickr

7d ISO 3200 135 2.2 Tv in a slightly better lit gym

PVC16Black7d014 by PVC 2012, on Flickr

EOS Bodies - For Stills / 1DX vs 1D IV ??
« on: January 18, 2012, 08:21:47 PM »
Had the guilty pleasure of renting a ID IV this weekend to serve as a second body (to my 7D) to shoot indoor volleyball tournament.  While I am not a paid professional (yet), I am striving to take me vision to the next level, and despite nice lenses, the low-light challenges continue to plague some of my shots with unpleasant noise. While I think about light, in my world I cannot control it very much, so I am forced to think more about my gear ;) but only in so much as it helps me achieve on paper (and computer screen) what I 'see' in my mind, and what my clients (players/parents/coaches) can treasure forever.
While I was able to get more 'usable' shots with the 1D IV in the higher ISO ranges (4000-12,800), I'm curious to the potential of the 1DX in this setting vs the 1D IV.  I have not yet seen output from the 1DX, and wondering should I expect $2K 'better' high ISO performance.  I have almost weekly tournaments to shoot between now and June, and am debating whether to take the plunge now and get my own 1d IV or 'tough' it out with only a single body till the 1Dx comes out.  I also have the trip of a lifetime this August (Galapagos Islands) and will 'need' the second body there as well.  Are the 7D and 1D IV too close in function and therefore should I wait till the FF 1Dx is available?? While both pricey, the 'extra' $2K has me wondering how much more useful the 1Dx will be c/w the 1D IV ??

Canon EF Prime Lenses / Re: Canon EF135mm f/2L USM
« on: January 18, 2012, 10:30:52 AM »
Love this Lens

PVC18Black1D041 by PVC 2012, on Flickr

Canon EF Prime Lenses / Re: Canon EF135mm f/2L USM
« on: January 17, 2012, 08:44:26 PM »
Here are some of the comparison shots with this lens on both a 7D and/or the 1D IV  Different Gyms with different lighting but both shot with Tv mode, autoISO so more real life than technical comparison  :)

135/2  1/1000 Tv ISO 3200 on the 7D

PVC16Black7d011 by PVC 2012, on Flickr

Here is similar shot with 1D IV

f2.2 1/800 ISO 6400

PVC18Yellowreedits1D093 by PVC 2012, on Flickr

Canon EF Prime Lenses / Re: Canon EF 35mm f/1.4L USM
« on: January 17, 2012, 08:30:40 PM »
First attempts at panning action with a wide-angle with a 7D

PVC18Black01 by PVC 2012, on Flickr

Canon EF Prime Lenses / Re: Canon EF 35mm f/1.4L USM
« on: January 17, 2012, 08:27:22 PM »
35 f2.5 1/500 Iso 1600 7D

PVC17Black7D003 by PVC 2012, on Flickr

Canon EF Prime Lenses / Re: Canon EF135mm f/2L USM
« on: January 16, 2012, 06:50:26 PM »
Gorgeous pics ! Once I get a FF the next buy will be this beauty 135 f/2 L ! :-)

No need to wait for FF, the 1DIV and 7D photos from above show what this lens is capable of....

Canon EF Prime Lenses / Re: Canon EF135mm f/2L USM
« on: January 16, 2012, 06:13:51 PM »
1dIV, ISO6400 1/640 f2.2 Tv


Canon EF Prime Lenses / Re: Canon EF135mm f/2L USM
« on: January 16, 2012, 05:59:18 PM »
7D, early AM snow


Canon EF Prime Lenses / Re: Canon EF135mm f/2L USM
« on: January 13, 2012, 08:56:36 AM »
  Next week, I am shooting a VB tourney for 2 days, and I am renting a 1D Mark IV as a trial...trying to decide 1D MIV vs 1DX.....

You wont want to hand back the 1D4 ...

Wow you are not kidding - just started last PM for practice.  The ISO range difference is unbelievable c/w 7D. Indoor, no flash, no problem.
Took a walk in my neighborhood last night before a snowfall (so no contrast on the ground), with only moonlight, and got interesting / usable handheld shots at 1/15 and 1/30.

Shot indoor volleyball then indoor soccer (my kids are very busy), and paired the 135 with both the 7D and the ID IV - didn't have time to process yet but first glance I liked what the viewfinder shows, but my wife is not gonna be happy (neither is LENSRENTAL) - I may not return it  :)

I will shoot similar shots this weekend with the 135 using both bodies for a real-life comparison and post next week.

Portrait / Re: Candid portraits
« on: January 12, 2012, 07:17:08 PM »
I was "working" from the office computer (Chrome), now I'll upload it from Safari (home)

On my screen, it looks fine, did we solve the dilemma or do I need to post-process in PS differently?  My usual work flow is to shoot in max resolution RAW, (7D), download to my MacPro, working with 27" LED screen (not calibrated), select website keepers, then edit only those keepers in Adobe Camera Raw, then "save as" JPEG ProphotoRGB 8 bit, 240 ppi, (usually downsize to ~ 1910x1274) and then "DONE" the original file.  Later I upload my keeper JPEGs to my hosting service (Phanfare) and I've just started 'sharing' some with a new FLICKr account to see how I like that service, and to facilitate copying to this forum.

I've experimented at times shooting sports in native JPEG, trying to save time post-processing, but for sports/lowlight, I find I need to post-process anyways.

Portrait / Re: Candid portraits
« on: January 12, 2012, 01:45:29 PM »
Here it is again - not sure why it is different


Portrait / Re: Candid portraits
« on: January 12, 2012, 09:49:30 AM »
Keep em coming, and include body and lens (and settings if helpful) :)

Lighting / Re: Trouble shooting on the 430 EXII (HELP!)
« on: January 10, 2012, 11:03:20 AM »
Thanks for that tip - I usually shoot AI servo for indoor sports and now I know (in advance) why it wouldn't work. Love how you anticipated the next question.... :)

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