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Messages - arjay

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EOS Bodies - For Stills / Daylight Savings Time
« on: March 09, 2014, 11:14:02 AM »
DST!   Did you remember to reset Date and Time on your camera?

Landscape / Re: Post Your Best Landscapes
« on: February 16, 2014, 10:35:16 AM »
Autumn in the Eastern Sierras

EOS Bodies / Re: Patent: Canon Curved Aperture Diaphragm
« on: January 27, 2014, 11:07:17 AM »
Wouldn't that result in field curvature? Or maybe this is a way to correct that?

It wouldn't affect curvature of field, but it sounds like a way to correct for focus shift (the 50 1.2 L has been known to have focus shift at close distances)

Landscape / Re: Post Your Best Landscapes
« on: January 16, 2014, 10:22:38 AM »
One from yesterday.

Cool shot!  It would be interesting to see the same shot after a hard rain.

What part if the country is this?  AZ?

Anza-Borrego Desert State Park, Southern California

Landscape / Re: Post Your Best Landscapes
« on: January 15, 2014, 07:49:08 PM »
One from yesterday.

EOS Bodies / Re: Canon Teaser
« on: November 08, 2013, 02:03:29 PM »
It seems to be the next rebel
It has the rebel profile

EOS Bodies - For Stills / Re: Removal of IR Highpass filter
« on: October 16, 2013, 11:02:30 AM »
If you haven't seen this site, it gives step by step instructions, with photos
good luck.

Lenses / Re: Does IQ vary with focus distance?
« on: October 13, 2013, 09:13:07 PM »
Roger Cicala at Lensrentals has a number of good articles on lens tests and I.Q. etc.

For example: http://www.lensrentals.com/blog/2013/10/there-is-no-perfect-lens-test-either

He addresses your question in this article

EOS Bodies - For Stills / Re: Is it flare, internal reflections or a ghost
« on: September 18, 2013, 08:09:30 PM »
Thank you Arjay and AUGS. Noted user error.
User error, perhaps... but more like running into limitations of equipment that has less than 100% of internal reflections suppressed.

EOS Bodies - For Stills / Re: Is it flare, internal reflections or a ghost
« on: September 18, 2013, 08:00:22 PM »
Some lenses have more flare and internal reflections than others.  Manufacturers try to cut down on this with coated lenses and whatnot, but, you can't really eliminate this flare with the lens you have. (Photoshopping it out of the sky isn't hard, other places maybe harder...)

EOS Bodies - For Stills / Re: Is it flare, internal reflections or a ghost
« on: September 18, 2013, 07:43:54 PM »
These are reflections, could be internal...

Lenses / Did I get a bad copy of the EF-S 17-55 f2.8?
« on: September 10, 2013, 06:15:20 PM »
I just received my “new” refurbished  EF-S 17-55 f2.8 from Canon.
Really excited, until I began testing the lens and comparing it to my 18-55  kit lens.

The 17-55 is touted as being a great lens, please tell me if the one I got is merely lousy
or if this is typical.

I've done a bunch of boring tests,  but here are some comparisons of the 17-55 compared to the kit lens at f5.6. 

The 17-55 is sharper in the center.

The 17-55 has less CAs

The kit lens is sharper with less distortion on the edges at all focal lengths.

Is this a bad copy?  If so  I'll see if Canon will exchange it.
What is other people's experience?

Lenses / Big price Drop On the EF-S 17-55 f2.8 IS USM
« on: September 02, 2013, 09:57:57 PM »
There has been a $300 price drop on the EF-S 17-55 f2.8 IS USM.
Now going for $879 at Canon, Adorama, B&H, Amazon and most likely everywhere else.

Does this suggest a (new and improved) replacement is in the near future?

HDR - High Dynamic Range / Re: Post your HDR images:
« on: August 06, 2013, 10:02:05 PM »
Here's one from last month

Not inactive!

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