August 20, 2014, 01:14:00 AM

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Messages - Jim Saunders

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1
Lenses / Re: Development Announcement of a New 800mm f/5.6L IS II [CR1]
« on: August 19, 2014, 02:01:09 PM »
Is there any big performance gain to be had, or is it a question of it being half a kilogram lighter and two thousand dollars more expensive? Don't get me wrong though, the weight savings is surely worth it for some.

Jim

2
Brits, particularly most Londoners, generally don't get the George C. Parker reference, when you talk of bridges like that they are much more likely to think of Roberto Calvi.

I wasn't aware that he sold bridges.

He... didn't.   If his experience with them forms part of the typical frame of reference for a European then it might offer some context for the earlier discussion.

Jim

3
EOS Bodies / Re: B & H is already selling 7D Mark II Accessories
« on: August 19, 2014, 09:50:06 AM »
Plausible, but I don't see how it tells us anything about the camera besides loosely suggesting its existance.

Jim

4
Lighting / Re: HSS power loss
« on: August 18, 2014, 02:12:07 PM »
Your exposure changes by a factor of two for each stop, so the two stops between f/16 and f/8 means your flash delivers a quarter of the power.  The math aside if you know that going to HSS means two stops (or however many) then you have the answer you need.

Jim

5
Lighting / Re: HSS power loss
« on: August 18, 2014, 01:43:16 PM »
Sure, set a scene at whatever your sync speed is and f/14 or so, whatever fixed ISO you need and manual flash output.  After that go to HSS and see how much you have to open the aperture to get the exposure back up.

Jim

6
Canon General / CPS Canada - No (more?) welcome package?
« on: August 17, 2014, 10:21:34 PM »
Anyone else here a member?  I mailed away a money order (how quaint) and received a membership card in the mail; is that the norm?  I ask on account of people joining and getting some interesting stuff for their trouble.

Jim

7
First day out with it.  I have to say it blows the doors off of Sigma's previous effort.

Jim

8
Photography Technique / Re: APOLLO missions - image inconsistencies
« on: August 17, 2014, 10:01:35 PM »
Considering Aldrin's approach to such malarkey, all I can say is that imitation is the sincerest form of flattery.

Jim

9
A co-worker has one of these as a retirement goal.  I have no idea what he wants to do with it, but its his money.

Jim

10
EOS Bodies - For Video / Re: LCD display feed from external source
« on: August 15, 2014, 02:14:17 PM »
If there isn't, small battery-powered monitors are off-the-shelf accessories; the video-oriented ones typically have HDMI in and many can be ordered to run on common camera batteries.  B&H has a lot of info on them.

Jim

11
EOS Bodies / Re: How do reds come out in your 5d3 ?
« on: August 13, 2014, 12:43:47 AM »
I just had this fist-fight with my 1Dx; I found that calibrating colours with a colorchecker passport got the shade right, and then selectively dropping the exposure on red bits by around 0.6 got them sorted.  Oddly enough it wasn't the reds that shifted on the histogram, but blues.

The images in order are as imported; lens profile; color profile and finally the upper flower dropped down 1/3 stop with a brush stroke in LR5.

Then again to compare them back to back for this one I might leave the exposure; I definitely agree that they're troublesome.  I was out shooting some red uniforms under fluorescent light a week or so ago and post on those was a real pain.

Anyway I'll get a more useful response together tomorrow.

Jim

12
Macro / Re: Yellow Jackets on Sunflower
« on: August 11, 2014, 11:40:44 PM »
Good shot, P&S or otherwise.

Jim

13
Plastic zoom and focus rings, hmmmm, that's first in the the L world with a full plastic outer shell.

If I can get like this with plastic, I'll take plastic.

Jim

14
Canon EF Zoom Lenses / Re: Canon EF 16-35mm f/4L IS USM
« on: August 11, 2014, 10:40:13 PM »
I've run the numbers and this thread needs a cat.  She looks a bit orange because my obnoxious orange t-shirt reflected some.

Jim

15
Thanks for the suggestions. A few things to check out.

Personally if someone showed up and wanted to run an executable on my computer, they'd be shown the door. 

I find it strange, too.  But it is a compulsory component of a competition I'm entering - "Final output must be as an executable file (.EXE) and burnt to CD/DVD."

The reason that I'm asking for some suggestions is that I downloaded a training video from one of the programs (also in .exe format and I assumed produced on their software).  My antivirus software started flashing red lights about a trojan virus.  Hmmm.

Huh.  I honestly never considered the angle that they might want it that way.  Judging by your experience with their content, they live dangerously.  :-\

Jim

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