October 21, 2014, 04:33:18 PM

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Messages - AJ

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1
EOS Bodies / Re: EOS 7D Mark II: More High ISO Samples
« on: September 28, 2014, 06:16:39 AM »
What about low iso.  My 7D is noisy at 100 iso.  Any improvement?

2
Canon General / Re: Another Canon Medium Format Mention
« on: August 11, 2014, 12:00:26 PM »
On a sensor doubled in size by a factor 2 (crop factor 0.5) a lens 100mm f 2.8 delivers the same picture like a 50mm f1.4 lens on FF.
No, it'll be like a 50/5.6.  The light is spread out.

3
EOS Bodies - For Stills / Re: DSRL Camera for travel
« on: August 02, 2014, 02:46:36 AM »
Skip the ultrazoom and get a 18-55 STM and 55-250 STM.  Much better performance for less money.  Enjoy your travels.

4
Canon General / Re: What is your Least Used Piece of Gear?
« on: August 01, 2014, 11:42:18 AM »
Least used piece of gear at the moment?  Sadly, my Elan 7E   :-[

5
EOS Bodies / Re: Canon to Make a Big Splash at Photokina? [CR2]
« on: July 31, 2014, 12:24:02 PM »
The single most interesting thing is going to be the sensor in the new camera.

I disagree.  I think the 7D2 will be all about 4k video.  There will be new digic chip(s) to make that happen.

6
zzzzz.  Wake me up when they add tilt-shift.

7
Lenses / Re: Review: Tamron 150-600 f/5-6.3 Di VC USD
« on: March 09, 2014, 04:28:02 PM »
Interesting.

The Tamron at 400/5.6 looks a lot sharper and contrastier than the Canon 100-400 at 400/5.6
However, the Tamron at 600/8 looks weaker than a Canon 100-400 with a 1.4x TC

So, by inference: will the Tamron at 400 mm with a 1.4x TC attached outperform a Tamron set to 600 mm without the TC?

8
Lenses / Re: Is There a Definitive "Best" Landscape Lens for Crop?
« on: January 31, 2014, 03:05:52 PM »
Sigma 8-16 or Tokina 11-16/2.8

9
Anyone notice this?

Quote
every lens is tested with Sigma’s proprietary modulation transfer function (MTF) “A1” measuring system before being shipped.

I think Sigma is really stepping it up.
First came adjustable focus - i.e. goodbye frontfocus problems.
Now: Goodbye decentering problems.
and at $900 this lens will be sharp and it'll have wonderful bokeh.  I have no doubts.
I think Sigma will be the new Zeiss - i.e. a premium 3rd party brand.



10
Lenses / Re: New lenses ($6800 budget)
« on: January 05, 2014, 11:52:01 AM »
Canon 15-85, Canon 100-400 L, Canon 100/2.8 L, Sigma 85/1.4 or Sigma 50/1.4

11
Lenses / Re: Another strike against UV filters
« on: December 18, 2013, 02:16:43 PM »
I crashed my car and my seatbelt left a bruise.  Another strike against seatbelts!

12
Lenses / Re: DXOMark: Sigma 24-105 f/4 DG OS Reviewed
« on: December 18, 2013, 02:14:08 PM »
An f/4 zoom lens is not one you'd expect to have optimal light transmission anyway.
Isn't the point of lens design to have optimal light transmission?  And if the f-stop is four and the t-stop half a stop worse, doesn't that say something about Canon's glass elements and coatings?  The Canon 24-105 is a good lens but it should not have been branded with the red ring.

13
Lenses / Re: DXOMark: Sigma 24-105 f/4 DG OS Reviewed
« on: December 18, 2013, 11:34:23 AM »
The t-stop of 5.1 for the Canon 24-105 is a bit of a shocker to me.  tsk tsk Canon!

So basically the Sigma is about the same price and about the same sharpness, but half a stop brighter.


14
Third Party Manufacturers / Re: Sigma 135mm f/2 DG OS Art Coming? [CR1]
« on: December 17, 2013, 12:00:59 PM »
Big DSLR announcement, hmmmm. Could they make a camera with an EF mount? Just think, all the sigma lenses sold to canon users would now work on it along with the canon lenses too, it would be a Trojan horse coup d'e'tat
Yeah I never understood why Sigma has their own lens mount.  Who's going to invest in an arsenal of Sigma-mount lenses?  Not me, even if they put out a decent body at a decent price.  Much better to have bodies with Canon and Nikon mounts.  That way a Sigma camera can mount more lenses ( = more camera sales) and Sigma can simplify its lens lineup by having fewer lens mounts ( = more profit).

15
Right. 

Remember, 10 years ago we thought that in 2013 we'd be driving hydrogen-powered cars, our houses would be lit by power obtained through cold nuclear fusion, and cancer would be cured. 

And we thought APSC was just going to be a stop-gap format.

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