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Messages - CR Backup Admin

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Canon EF Zoom Lenses / Re: Canon EF 100-400mm f/4.5-5.6 L IS USM
« on: February 11, 2011, 11:13:10 AM »
I'm hoping that winter is winding up, that pile of snow in my back yard is a small fraction of what was there.  Unfortunately, more snow if in the forecast.

It is nice to have a few days break and see a blue sky though. 

I usually use the 100-400L at short range, but I did not see anything better to photograph from my porch, and it was too cold to setup and wait for birds.  There was a flock of magpies around, but they are very shy, and do not sit still for more than 5 seconds.  They watch us in the house and leave if we head toward the door.

Site Information / Re: Non-responsive script
« on: February 11, 2011, 11:01:01 AM »
Firefox 3.6 on windows 7 64 bit.  Never a issue.  I turned off the default popup blocker and ads appeared instantly, its very fast.

Lenses / Re: 24 - 105 mm f/4 L IS II
« on: February 11, 2011, 10:41:24 AM »
The new 24-105 replacement was rumored last year as well.  Lens rumors are very difficult to get accurate information on.  It does not seem unreasonable that a new one could be coming with a wider focal range, but it will be much more expensive, so it won't pull down the value of my existing one that I paid $700 for new three or four years ago.  Back then the 5D kit with 24-105 cost a $600 premium over the base camera, and I bought the lens from a person who already had a 24-105 and just wanted to defray the cost of his 5D.

Mine has been a wonderful lens, on a crop camera, its a bit better than it is on my 5D.  I don't use it except as a outdoor walk around, and prefer to use primes if I can.  I even returned my new 70-200mm f/2.8L II because I found it easier to carry three primes with me.

If a new 24-105 replacement came out with a 5D MK III, I'd be tempted to buy the kit.

Software & Accessories / Re: canon replacing their scanners?
« on: February 11, 2011, 10:31:58 AM »
Is was announced last May, so its unlikely to be replaced soon.  Scanners do not sell very well, so there is no incentive to put out major new models.  I've had my Epson photo scanner for 3 years, and it really hasn't been improved upon by much.

When they come out with a USB3 scanner, it might be worth taking a look at.  Speed is the biggest thing if you are scanning hundreds of old negatives, and I have thousands left to do.  For slides though, the low cost photo scanners don't do well enough for me.

EOS Bodies / Re: T3 Sensor - question...
« on: February 11, 2011, 10:07:12 AM »
I'm not sure what this thread is predicated on.  where/why is the T3's MP count different from the 450D's?

T3 - 4272 x 2848
XSi - 4272 x 2848

yes they may have updated the manufacturing process (I don't know enough about it to know whether changing to gapless microlenses is a big deal), but I also don't know where the assumption that the sensor has changed is coming from.  given the fact that the max pixel counts are exactly identical, and that the T3 slots in even cheaper than the XSi, I am of the opinion that it's exactly the same sensor

The radically different high ISO performance for one.  Even with PC powered NR in post production the 450D isn't *close* to that good at high-iso.

Updating from Digic 3 to Digic 4 likely adds at least 3/4  stop.  Better noise reduction algorithms probably adds 1/2 stop, Changing to gapless micro lenses and updating the bayer filters, can add 1/2 stop, suddenly you get around  2 stops with the same basic sensor.  They can also make a lighter AA filter.  All this could make a big difference.

The simplest solution is usually the best one.

Portrait / Portrait of a Criminal
« on: February 10, 2011, 04:07:56 PM »
These portraits of criminals come from the archives of the police in Sydney.
Police officer-photographer who took them in the 1920s was to have a great sense of artistic, even ignoring the context each photo is superb.

Here is a link


Lenses / Re: Your lenses wishlist for 2011 - RESULTS
« on: February 10, 2011, 03:53:38 PM »
Great summary, thanks for taking the time!

Keep in mind the figure (and I hesitate to call it a fact, but it does seem reasonable) that 70-80% of Canon lenses are produced in Taiwan.  That means more than 70% of lenses Canon makes comprise the EF-S 18-55mm, EF-S 55-250mm, EF 50mm f/1.8 II, and EF 75-300mm's.  I'd venture a guess that the margin on L lenses is higher, but like the Rebel bodies, the >$300 lenses are the core of Canon's dSLR business.  The high end gear (L lenses and xD bodies) don't generate the same level of profit...at least direct profit.  But, the Canon gear in the hands of pros - at sporting events, shooting your wedding or portraits, etc., that's advertising for Canon.  That leads to stronger consumer sales or Rebels and EF-S lenses, which in turn funds the next round of R&D for xD bodies and L lenses.


The DSLR Camera, Lens, and Accessory value to Canon continues to grow,  In their latest Financial Report, the consumer FY 2011 projection is for 23% of their volume on a unit basis to be DSLR, lenses and accessories, and in income value, 69%.

Canon EF Zoom Lenses / Re: Canon EF 100-400mm f/4.5-5.6 L IS USM
« on: February 10, 2011, 01:53:43 PM »
Just for the heck of it, I set up my 1D MK III on my back porch when we had a clear day last weekend and tried the 100-400mm L on Mt Spokane which is about 8 miles distant.  I knew the photos would not be picture perfect, there is 8 miles of air to distort the image.  I was suprised that those with TC's came out as good as they did.

I think the results show that you need to be close, but also that TC's work better than I expected as long as there is time to manually focus.

I used aperture priority, f/11, ISO 800,  shutter speeds varied from 1/2000 to 1/3200.  Even in good light, there is noise at ISO 800.  The camera could not reflect the aperture value properly with two TC's, but t did reduce shutter speed to compensate so the exposures were ok.

I focused on a television tower, the same one my wireless internet provider uses.  I used live view on the the shots and a wireless remote to help keep vibration down.  I also used as fast a shutter speed as I could.  I tried turning IS off, but results were better with it on, so all the 100-400mm images have IS turned on, even though it might not have worked with the stacked extenders.

First, a shot with a 50mm lens.  On a 1D MK III its slightly telephoto, but gives you a good idea of how far away the mountain is.

Next, a view at 400mm.

Now 560mm (with Canon 1.4X II TC)

Now 800mm (Canon 2X II TC) Manually focused using liveview.

Finally 11200 mm with the 1.4X and 2X Stacked and manually focused using liveview.

Lenses / Re: Canon EF 200-400 f/4L Review up on The Digital Picture
« on: February 10, 2011, 01:22:45 PM »

Just a thoughtful analysis of what the lens is likely to be, nothing firm or certain, but from a lens expert.

I still hold on to the hope that something nice is coming from Canon, keep your ears pasted to the rail.  :D Is anyone in this forum going to attend Canon's presentation at CP+ given by Kenji Kyuma? If so, gives us the best dirt you can get.

Fingers Crossed. :)

The seminars and presentations at CP Plus are NOT forums to advertise or to announce new products.   This IS NOT a Canon presentation.  New product announcements are made at press conferences that are called usually in advance of the actual trade show, and then the company exibits in the trade show hall will show samples, photos, mockups, and literature about new products announced before the show.

I've been to many such seminars.  Presentations are vetted by a group of reviewers to make sure no trade secrets are revealed.  There is skill involved in pulling the information together into a interesting presentation that summarizes the current state of the art and challanges presented for the future.  We all know what they are, but a good technical paper can at least assure you that the photography industry knows it as well, and is hopefully doing something to address the issue.

4. Full HD movie function in DSLR cameras
○Kenji Kyuma (Canon Inc.)
Presentation about the current state and future evolution of the movie function in DLSR cameras, illustrated with examples of applications in both the Japanese domestic market and the international market.
1. Characteristics of the movie function in DSLR cameras (advantages/limitations, recording format, image compression, frame rate, etc.)
2. Examples of applications (TV series, Commercials, Promotional Videos)
3. Future evolution of the movie function in DSLR cameras

EOS Bodies / Re: 60D vs 7D with FF in the near future:
« on: February 09, 2011, 10:09:36 PM »
Remember that the IS on the 24-105 will only help with stationary subjects. So if you are shooting portraits with that lens you are better off with the one stop faster 24-70 for subjects that can move + you'll get better subject isolation from the shallower DOF.

As for which camera to get, I'd go with the 7D myself but that is more my personal preference than an specific knowledge of the ISO comparison between that and the 60D.


I certainly would not want to hang a 24-70mm L on a 60D.  It is so front heavy that it is difficult to hold still, and you need a high shutter speed, while with a 24-105 you can get away with slow shutter speeds.  There is also the lottery that you go thru with the 24070.  I had 5 of them, but sold all since they could not match my 24-105.  Even if you get lucky and get one of the good ones, its still a mismatch.

The 17-55mm EF-s is a much better match for a 60D, even then, those used to the 18-55mm IS complain its heavy.

EOS Bodies / Re: T3 Sensor - question...
« on: February 09, 2011, 10:02:28 PM »
So the T3 (Canon's lowest end DSLR) gets a brand new sensor (the MP count is different than the 450D as is the ISO performance), so I started doing some math..

Long story and boring math aside, I'm left with the distinct impression this is a cut down 5D-Mk III sensor.  I'm curious to see if anyone else has given this any thought.  I just don't see *any* reason for Canon to build a new APS-C sensel w/ gapless microlenses for just one camera (and their cheapest at that).


This simplest math comes from comparing the resolution to other APS-C sensors from newer models than the XS it replaces.   It is likely a derivative of the XSi which is also 4272 X 2848.  Its a slightly smallerphysical size, but that could be a result of the closer spaced micro lenses.

Lenses / Re: Canon Officially Announces the 500 f/4L IS II & 600 f/4L IS II
« on: February 09, 2011, 05:41:30 PM »
So with a 4-5% difference the 500 f/4 II would have a street price between $9000 and $9100. ouch. I better start sweet-talking the missus now...

Initially, they go for full MSRP.  After those who must have the latest toy immediately, the price drops to bring in the 2nd tier of buyers.

EOS Bodies / Re: 60D & 7D Rebates coming February 20
« on: February 09, 2011, 05:32:03 PM »
That doesn't make a whole lot of sense. If what you said is true, then that means when Canon does a rebate, less people will buy the camera as the price will be more. Therefore, Canon would anticipate overall less sales with the rebate. So if that was true, then Canon would deter potential sales by releasing the rebate. Why would they want to halt sales?

In the worst case scenario, they (being the retailers) keep the price the same and simply keep the entire rebate for themselves. But it makes no sense whatsoever that they would RAISE the price, because they'll be shooting themselves in the foot.

since its been happening for a couple of years now, and Canon cameras fly out the door, your assumption of fewer sales isn't valid.

Most cameras are sold at big box stores like best buy, and buyers see rebate and hurry to get one before it ends.  Another factor is that the camera retailer must give the rebate at the time of sale, and later file a application for a refund or credit for the money they advanced.  They don't like this, and just bumping the price $100 or $200 eliminates the drain on cash flow. 

Last fall, on the day the rebates came out, I checked the web site of a large retailer, and while I was viewing it, the price of the 7D jumped $200.

EOS Bodies / Re: Canon 40D Shutter button **FAILURE**
« on: February 09, 2011, 12:28:08 PM »
It is normally dirt or oxidation of the contacts.  i've owned several 40D's with no issue, but we do not have humid weather or conditions that might promote a problem.

If you are mechanically handy, it can be repaired.  parts are not needed, the main issue is having the proper jis type screwdrivers so you can take out the screws without damage to the heads.  Here is a place that sells a good quality US made set.


Then you disassemble the camera to get to the switch and clean it.  Here is a lapsed time video that you can watch to see if you want to tackle it.


Good Luck

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