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Messages - thebowtie

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EOS Bodies - For Stills / Re: Daylight Savings Time
« on: March 10, 2014, 07:35:05 AM »
I use CUT /GMT « Coordinated Universal Time » no problem.  :)
Same here....

I also use cUT for all my work computers....
I use the GP-E2 GPS accessory on my 5DIII to set the time - it saves some headache...


Technical Support / Re: Lightboxes, umbrellas, stands, etc.........
« on: March 04, 2014, 06:30:25 PM »
I really recommend you buy a copy of Syl Arena's Speedliter's Handbook before buying anything else!

I totally agree. I bought Syl's book for my Kindle. Syl shows lots of low-cost, practical ways to do creative things with just a speedlite or two (or a dozen).

EOS Bodies / Re: Hardware Hack for EOS Cameras Coming Soon? [CR1]
« on: February 27, 2014, 09:45:44 PM »
<div name=\"googleone_share_1\" style=\"position:relative;z-index:5;float: right; /*margin: 70px 0 0 0;*/ top:70px; right:120px; width:0;\"><g:plusone size=\"tall\" count=\"1\" href=\"http://www.canonrumors.com/?p=15948\"></g:plusone></div><div style=\"float: right; margin:0 0 70px 70px;\"><a href=\"https://twitter.com/share\" class=\"twitter-share-button\" data-count=\"vertical\" data-url=\"http://www.canonrumors.com/?p=15948\">Tweet</a></div>
<p>We received an email stating that a certain company is getting ready to announce a hardware hack for Canon EOS cameras. Only the EOS 5D Mark III was listed, but other EOS cameras are likely.</p>
<p>The hack requires the mainboard inside the camera gets replaced with the modified custom board. It was not mentioned how, or where you’d send your camera to get the modification. I’d think they’d have to give away a few modified cameras to get the trust of the consumer. The reported cost of the mod is $1000 USD.</p>

Oh dear, are we now seeing April 1 product pre-announcements?
Consider this - a new mainboard, the thing that makes the camer work - never mind the warrany/repairability implications.
What about future compatibility for CANON firmware (or even MagicLantern?)


Photography Technique / Re: Perspective Distortion and How to Use it
« on: February 21, 2014, 12:31:00 AM »
I thought I'd go beyond the normal samples to show how this technique is used in real-world shooting.  It's particularly useful in shots like this when the client gives you extremely vague guidance like, "Shoot the Rose Garden and be sure to get shots of the roses and the gazebo."  In cases like that, you want to give the client as many shots a possible.  Personally, I liked this shot which I thought covered the feel of the place the best:

...And which shot did they choose???  The one I shot just for fun since I was there:
I would have gone with the first shot.... It shows the uniqeness of the area, where the first shot, very nice btw, is just a standard rose shot and could be from anywhere.
That was my thought, too, though I have to admit that when printed on a 40"x60" stretched canvas, the rose did look really nice on the light yellow wall in their lobby alongside some of my other shots that were a bit more unique.
Hi macguyver,
Thanks for giving a well-illustrated tutorial on perspective.
I think your last comments - indicating what the client wanted to use the photo for, and where - was also instructive - and maybe that (with the benefit of hindsight) could have driven the creative process more.

Lenses / Re: Effective focal length of some telephotos
« on: November 13, 2013, 01:28:48 AM »
A perfect lens does not have infinite resolution - read about Abbe's law - http://en.wikipedia.org/wiki/Diffraction-limited_system. The wave nature of light dictates that resolution is limited by the size of the Airey disk - see http://en.wikipedia.org/wiki/Airy_disk. Infinite resolution would require that the f number is 0 - ie the lens has an infinite diameter.

I never said that a perfect lens exists. A perfect lens is an abstraction.

Oh, I just love abstract photography!  ;)

EOS Bodies / Re: German Canon Event
« on: October 02, 2013, 01:53:38 AM »
This comment on that page was intersting:

"i work for zeiss in germany and i have some colleagues from university who now work for canon germany.

i can´t tell you much because i don´t know much about it.. but my canon colleagues say something big is comming in october. kind of a suprise."

Interesting indeed - Zeiss optics married to Canon Autofocusing - yum!

Maybe the "surprise" is on that theme - but that Canon might license its Autofocus to Zeiss to allow Zeiss to make EF-mount Autofocus lenses - or am I just dreaming?

Canon General / Re: I hate photographing my family for posed photos...
« on: September 03, 2013, 08:38:27 AM »
Simple solution! Don't photograph the family that way... Just shoot them in their natural environment doing what they like best... You are more likely to get keepers that way - but then you knew that already :)

I do... all the time... because that is the only way I get natural photos... but it is the group photos that are requested.  I'm like a rap DJ at a hot NY club who is asked to play some Sweet Home Alabama... sure... I love me some Sweet Home Alabama... but will THIS crowd dance to the tune.  Nope.
Maybe there's a different way.
It seems that you get acceptable shots once the subjects are comfortable with your presence as you shoot them one-on-one, or in smaller groups, and that the problem really arises when you have a large group, who probably get restless while you compose and shoot.

Try something that turns the "oh, no, a group photo" into  a "yippee" moment.
Make it fun! (Now I don't know what that will take in your circumstances - to make it fun long enough to keep their attention.
If the young ones are the troublemakers - give them something fun to do as part of the shoot!

Just an idea.


EOS Bodies / Re: Canon EOS 7D Mark II in 2014 [CR2]
« on: July 24, 2013, 09:41:00 AM »
Seriously, I think we are saying the same thing. 5DIII targeted to a professional market to fit a specific need. D800
targeted to...whom? I've never been sure.
I think the D800 is targeted at trolls  ;)

EOS Bodies / Re: New AF Technology Coming in July? [CR1]
« on: May 29, 2013, 08:59:26 AM »
I hope this is a classic Canon announcement and it isn't really "new", just so it will be eye control. I doubt it though.

D— — — AF

Digital Eye Control AF?   ;)

DECAF? That's not going to keep you awake long enough to find out what really will be released!

i would like that...  :D

EOS Bodies / Re: Patent - Tilt Shift Lens Related
« on: May 06, 2013, 10:05:08 PM »
Ah, here's my interpretation:
  • New Tilt/Shift lenses will embed metadata about tilt/shift - in real-time
  • Updated firmware could be coming to compatible cameras to display this metadata in LiveView mode or in VF to assist in composition
  • Compatible cameras could be 5DIII, 1Dx, etc. because they have LCD VF overlay as well

Here is a different translation of the basic claims.  Its a translation into English, and you know what that means :)
[Claim 1]
 It is the imaging device provided with a displaying means which can equip with a tilt lens and displays a captured image, 
 An acquisition means which acquires lens information which shows angle of rotation of a circumference of an optic axis in the aforementioned tilt lens, 
 A control means which controls the aforementioned displaying means to superimpose a line rotated from a horizontal direction or vertical direction to the aforementioned imaging device on the aforementioned captured image, and to display it according to angle of rotation of a circumference of an optic axis which lens information acquired by the aforementioned acquisition means shows 
 An imaging device characterized by preparation ******. 

EOS Bodies / Re: Patent: EF 400 f/4 DO IS II
« on: April 15, 2013, 06:20:48 AM »
I have been unable to find "Patent Publication No. 2013-64858".  It doesn't seem to be a US application - US2013064858 relates to a polysaccharide for modulating immune response.  Can you tell me where it was published?
I would say Japan (considering Canon is a Japanese company - they would file all initial Patent applications in Japan, and use world-wide agreements on IP protection whilst they filed patents elsewhere)

EOS Bodies / Re: A New DSLR Line from Canon? [CR1]
« on: March 12, 2013, 08:47:44 PM »
Maybe it will be a retro style AE-1 lookalike beasty

Maybe what they want to do is channel the Leica M-series idea but with a Canon twist?

Technical Support / Re: Photographing paintings for a Catalogue help please
« on: February 20, 2013, 09:03:39 PM »
The specs are:
Colour space : RGB
Colour ratio : 24 bit

Either height or width of an image should be more than 2000 pixels.
Image must have a valid ICC profile E.G. sRgb /Adobe Rgb (1998)
Image must have a valid RGB colour space and must be 8/24 bit colour ratio.
Given that you have a 5DmkIII - you should also have the Canon-supplied "Digital Photo Professional" software.
With that software you can select a RAW (CR2) file, and using the menu "File | Convert and Save" select the file format "Exif-TIFF 8bit (*.TIF)" and select the "Embed ICC profile in image" checkbox.

This will give you a TIFF 24-bit (i.e. 8-bit per Red, Green Blue channel) color file tagged with the Color profile (Adobe RBG or sRGB) that you used to take the picture.

Hope this helps

Technical Support / Re: Strange pattern in long exposure images
« on: February 18, 2013, 06:49:48 PM »
I was out shooting the Aurora Borealis tonight, and when I got my images on the computer screen I noticed some strange circular patterns in most of the images. Anyone seen this before?

It appears dead center in all the images where there is some light.

EXIF: 5D3, EF 17-40L 4.0 @ 30.0 sec f/ 5.0 ISO 800.

See cropped screenshot attached.
I think this pattern is caused by your lens - or something inside it.
My dim recollection of physics tells me this is a pattern caused by phase interference between curved and flat elements in your lens.

Patterns like this are seen in "interferometry" - I have seen this used by opticians profiling the surface of the human eye for visual correction purposes.

I'm sure it's also used in camera lens analysis and alignment.

Possibly your lens has a defect or alignment issue between some of the elements?

I'm sure there's someone much more knowledgeable (Dr @neuroanatomist?) that can answer this.

EOS Bodies / Re: In Camera Naming
« on: January 09, 2013, 06:52:09 AM »
I have two Canon 5D MkIII's. Wondering if one can name each camera via the menu or similar? Wanting to be able to identify each camera simply upon start-up and in post processing other than via serial number. i.e. Camera One. Camera Two.
Each 5DIII has a unique Canon-assigned code that can be used in generating an in-camera file name.
Go to Menu | SET UP 1 (Yellow Wrench) - select File Name, then the first option will show a sequence - maybe something like 0X9F . That code is the unique code of your camera body.
Experiment with the settings - YMMV


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