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Messages - AJ

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316
EOS Bodies / Re: 5D Mark III Information [CR1]
« on: November 30, 2011, 03:44:25 PM »
After painfully wading thru this, I think I can sum it up for those of you who start at the end:

Anyone who wants more megapixels than "me" is an idiot and doesn't understand picture quality.
Anyone who wants fewer MP than "me" doesn't do real photography.
Ansel Adams still rocks.

I didn't wade through all of it.

I'm skeptical of an 18 mpix sensor for 5D3.  Why would Canon put its new flagship 1Dx sensor in a lower class body right away?  Doesn't make sense to me.  I'm still thinking 36 Mpix.  Canon will respond to Nikon in this regard.

FWIW, the diffraction thing.  36 mpix is the same pixel density as 14 mpix on crop.  So from my experience with 18 mpix and 10 mpix crop sensors: you're good at f/6.3, okay at f/8.  At f/11 you start to see degradation and f/16 is for smaller prints only.

People have fretted about the diffraction thing every time a new crop sensor has come out.  IMHO 36 FF (and 14 mpix crop) is just about optimal, and beyond that, you start to get into diminishing returns.


317
EOS Bodies / Re: Canon Rebel 1000D Lost at Sea
« on: November 28, 2011, 12:36:39 AM »
I heard the photos were great, but the colors were a little oversaturated.

318
EOS Bodies / Re: 5D Mark III - which lens will Canon put into the kit?
« on: November 24, 2011, 01:02:35 PM »
I vote 24-104/4L IS mk2

319
My prediction for noise improvement of 5D3 over 5D2, on a pixel-by-pixel basis: there will be none.

1Dx will be the high iso cam.  5D3 will be the high mpix cam.

320
Lenses / Re: prime vs. zoom
« on: November 21, 2011, 01:02:13 PM »
I'd get a stabilized standard zoom (e.g. 18-135 or 15-85) plus a prime (e.g. 50/1.4), then save up for a long lens.

A standard zoom will make your rig much more versatile.  If bought as a kit with the camera body, the incremental cost makes it very good value.

55-250 could be a good stop-gap long lens until you're able to afford (and know what you want) for a faster long lens.

Have fun

321
Lenses / Re: Your Go To Portrait Lens?
« on: November 20, 2011, 03:27:10 PM »
I like my Tokina 50-135/2.8 and Canon 85/1.8


322
EOS Bodies - For Stills / Re: APS-C Image Quality (7d vs nex7)
« on: November 17, 2011, 11:57:21 AM »
The Sony NEX photo looks oversharpened.

Something's wrong with the 7D photo.  My 7D gives me much sharper results at 100%

323
Lenses / Re: Canon EF 100-400 f/4-5.6L IS "Soonish" [CR2]
« on: November 16, 2011, 10:39:24 AM »
The size of the front element is not what determines the f-stop.

It pretty much does for telephoto lenses.  e.g. the 200/2.8 has a 72 mm front element.

For normal and wide lenses the front element is not what decides f-stop.  This critical lens element is towards the rear.

If this lens is indeed a 100-400/4-5.6 with a 82 mm front element then the extra front element size may ease vignetting at the short end.   I doubt it would do much for the long end.

324
Lenses / Re: Canon EF 100-400 f/4-5.6L IS "Soonish" [CR2]
« on: November 14, 2011, 11:24:07 AM »
The 70-200/2.8 IS mk2 managed to improve performance without increasing front element size.  Ditto for 300/2.8 and 400/2.8.  I don't see why they'd have to do it with a 100-400.  FWIW, comparison with ultrawides isn't valid, optical design is very different.  As such there must be another reason for the increased size.

In theory, a 82 mm front element would allow 500 mm at f/6.3.

A 100-500/4-6.3 would be pretty exciting, and worth the high price tag if it performs at the long end.
And yes it would autofocus even at f/6.3


325
Canon General / Re: Filters: Cokin P Series "Equivalent" quandary
« on: November 02, 2011, 06:02:11 PM »
crop

326
Lenses / Re: New Lenses Imminent? [CR1]
« on: November 02, 2011, 05:38:16 PM »
I can't remember the last time an affordable non-L prime came out?  I think it was the 60/2.8

327
Canon General / Re: Filters: Cokin P Series "Equivalent" quandary
« on: November 02, 2011, 04:43:47 PM »
The Cokin P filter holder has three slots.  If you don't mind having only two slots, here's what you do: take a sharp utility knife and cut off the outer slot from the filter holder.  Voila, no more vignetting.  This 5 minute fix has served me well.

Good idea! ... however would like to know how wide can you go with 1 slot cut off (2 left) i.e. is 24mm ok?

I should have mentioned that I fixed my Cokin P filter holder for my Sigma 10-20 in this way.  So I can't tell you exactly how it's going to pan out for a 24-105 on a 5D.  However I can tell you there's quite a bit of gain in FOV.

328
Canon General / Re: Filters: Cokin P Series "Equivalent" quandary
« on: November 02, 2011, 11:20:06 AM »
The Cokin P filter holder has three slots.  If you don't mind having only two slots, here's what you do: take a sharp utility knife and cut off the outer slot from the filter holder.  Voila, no more vignetting.  This 5 minute fix has served me well.

329
EOS Bodies / Re: Beginner DSLR for video
« on: October 31, 2011, 11:29:26 PM »
The T3i is a really nice camera.  Go for it!!  Be sure to get the two kit lenses, 18-55 and 55-250.
You may be able to save some by getting a T2i.

330
EOS Bodies / Re: what the 1Dx may tell us about the 5Diii
« on: October 30, 2011, 01:24:26 PM »
i hope the new 1dx is telling us alot about the up coming 5dii ... i hope the ff sensor stays the same, no need for a larger mp sensor.  whats the point?

The point is: studio photogs and landscape photogs want more megapixels.

My guess is 5D3 early next year.  36 mpix,  iso characteristics similar to 5D2 on a pixel-by-pixel basis.

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