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Messages - emag

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196
Technical Support / Re: Strange pattern in long exposure images
« on: February 19, 2013, 09:25:32 PM »
I've had a similar interference pattern occur when using a filter on my EF300/4 (non-IS), which has an almost flat front element.  Back when I was a young man with a full head of dark hair, we would look for interference fringes when checking optical flats and precision gauge blocks under a monochromatic light.  Neuro mentioned 'Newton's rings'....that's a phenomenon of similar cause, in the context we used it was an indicator that cemented lens elements were beginning to separate.  We'd re-cement them with Canadian Balsam, nowadays replaced for the most part with different adhesives.  This thread has conjured up memories of the smell of hot Canadian Balsam and hours of rebuilding Navy binoculars....a pleasant memory.  Thanks!

197
Lenses / Re: Reverse teleconverter
« on: February 19, 2013, 01:54:11 PM »
In the astrophotography world it's known as a focal reducer or less commonly a telecompressor.  Often it is optically figured to also reduce field curvature; hence, another name - field flattener/focal reducer or FF/FR.  I use an f/6.3, it reduces my scope's effective focal length from 2350 to 1480mm and from f/10 to f/6.3. 

As for camera lenses:  http://www.sansmirror.com/newsviews/focal-reducer-lens-adapter.html

198
It's not the body.  And the problems the body has aren't ones that the 40D will necessarily solve.........

Sound advice.  40D is a fine camera (I have one) but will not improve your keeper rate, technique will.  Getting a 40D now will consume capital for little benefit.  Keep saving those pennies in the meantime....you'll have something better by the holiday season or for next spring.  That said, a decent video camera would not hurt the bank too much and might be a nice addition to capture memories.

199
EOS Bodies / Re: Canon EOS 7D Mark II Spec List [CR2]
« on: February 19, 2013, 09:20:36 AM »
No....integrated.....coffee....maker.  Arrrrggghhh!  When will Canon get on the ball?  I'm so disappointed.......

Sounds like a fine tool

200
EOS Bodies / Re: What if the rumored 5Dx is actually a 4D?
« on: February 15, 2013, 09:17:10 PM »

I never use small or medium raw, nor do I know why anyone would. The point of raw is non-processed information; down-interpolation is processing.

I've often used MRaw for time lapse.  I find it gives me PP flexibility without huge file sizes.  YMMV.

201
Site Information / Re: Anyone bought from DWI?
« on: February 15, 2013, 09:09:56 PM »
Doesn't pass the smell test

202
EOS Bodies / Re: Canon Cinema EOS C50 [CR1]
« on: February 13, 2013, 09:29:15 AM »
.........not working with morons and getting the blame when it goes tetes up.......

I don't do pro film/photo work, but I do have to contend with morons on a frequent basis.  Most of the ones I have to deal with have zip for common sense and no social skills whatsoever.  On those days that are particularly exasperating, I let my co-workers know they should use my Native American name when talking with me:

"Works With Morons"

203
My $0.02:

7DII will be startlingly good and startlingly expensive

70D will be more affordable and have enough improvements for those who prefer crop to replace 40D/50D, and to some extent 60D.  All the above plus 60D and to some extent 7D users who are on the fence (crop vs. FF) are IMO the target market for 6D.   If you have to make a decision by mid-May, you're looking at being an early adopter who will pay premium price, something to consider.

FWIW - I have an astro-modified 40D and a 60D.  If all I had was the 40D I'd be looking hard at the 6D.  As it is, I AM looking at the 6D, getting my 60D modified and selling the 40D (which is still a fine camera) to pay for the 60D modification.  For my purposes, wireless trumps the 5D3's AF.  YMMV.

204
PowerShot / Re: Canon SX50 Review - Best Superzoom yet.
« on: February 10, 2013, 01:50:28 PM »
No mention that it's also capable of high frame rate video, with reduced resolution of course.  Put it all together and this is an ideal carry everywhere camera.  We don't all want to carry a DSLR and a bag of lenses every day.  Comparable in price to, f'rinstance, a Tamron 28-75/2.8.

205
Video & Movie / Re: The Blizzard of 2013 Time Lapse
« on: February 10, 2013, 01:32:38 PM »
For your dedication and push-the-shutter-every-30-seconds efforts I give you two thumbs up and a virtual beer, amigo!  I enjoy doing time lapse also, although on the day of the storm I was outside in 70 degrees and sun in the Florida Panhandle taking (camcorder) video of fire ants.  I grew up in snow country and have friends and family digging out - I no longer recognize a snow shovel.  I shoot many of my TL's in MRAW and find that Lightroom's 720 resolution is just fine.  I found full size RAW and 1080 to be overkill for this application.  Just my opinion.  Processes fast and for video the quality is fine.  I recommend a timer remote from GadgetInfinity or some such, I have both wired and wireless, although on my 60D I use Magic Lantern exclusively.  For astro lapses, I shoot three per minute, 15 second exposures, ~1000 frames for six hours and 45 seconds at 24fps.  Sunrise/sunset stuff I use ML's Bulb Ramping.  Daylight just pick an appropriate interval, sometimes using ML's fps override and saving shutter cycles.  Lens twist method for constant aperture or an adapter and a manual M42 lens.

206
Lenses / Re: I can't stop thinking about A MONSTER!
« on: February 08, 2013, 01:30:11 PM »
.
If you get the lens, may I borrow it next time in Austria??

Heck with that.  Your girlfriend got a sister???? ;D ;D

207
EOS Bodies / Re: EOS 6D Anti-Aliasing Filter
« on: February 08, 2013, 12:33:42 PM »
But, when a third-party offers a fix for a problem... you've really got a problem.

I understand your point of view, but I don't consider it a 'problem', I believe the camera was intentionally designed that way for still photos, it was not intended to be optimized for video.  What you consider a third-party fix for a problem I consider a third-party enhancement.....an aftermarket accessory.  If it does the job it's a good thing for all.

208
Lenses / Re: I can't stop thinking about A MONSTER!
« on: February 08, 2013, 09:11:15 AM »
Given this added info, I retract my former advice.  Go for it and enjoy.

209
Lenses / Re: I can't stop thinking about A MONSTER!
« on: February 07, 2013, 02:34:34 PM »
Rent it.  Seriously.  And be sure to include the damage insurance.  Then rent a 300/2.8IS and 1.4x and 2x TC's.   Maybe even the 100-400 also.  Then sit down with your favorite adult beverage and have an honest conversation with yourself.

210
Canon General / Re: anyone had someone over their shoulder on a job?
« on: February 07, 2013, 10:32:57 AM »
The recent weddings I've attended were for a friend who married one of my co-workers and for my nephew.  At the friend's wedding I stayed out of the way and mostly took candids.  For the formals, I saw the photographer talking to the wedding party and gesturing toward friends and family with cameras who were standing around.  He asked all of us to hold off until he was finished, then told us the wedding party would like us all to get our shots while they were still posed.  He became an integral part of the reception and seemed to enjoy things as much as anyone.

At my nephew's wedding, I got one dirty glance from the photographer when he first spotted me using a long lens from a distance, I think he was concerned I would be Uncle Bob (Ed, actually) and get in the way at some point.  Understandable.  I never did and never tried to horn in on his money shot poses, just wanted photos of my favorite nephew's wedding, I live 1600 miles away.  I didn't get any more dirty looks from him and he never offered to let friends and family take photos of his formal poses - went to a separate room and closed the door.  He did not interact with reception guests (i.e., came up a little short on candids IMO) and had an air of "I'm a professional, do not interfere with or disturb me in any way."


Both professionals were well paid and did excellent work.  If needed, I would hire one of them.

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