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 Tuesday, December 04, 2012
ISO 12233 chart, flare, distortion and vignetting test results along with measurements & specifications have been added to the Canon EF-M 18-55mm f/3.5-5.6 IS STM Lens Review page.
 
Note that the Canon EOS M shares the Canon EOS Rebel T4i/650D imaging system. This includes the slightly sharper images output at our standard ISO 12233 test sharpness setting of "1" (with the Neutral Picture Style). The difference in sharpness is about the equivalence of a +1 sharpness setting.
 
As you have already guessed, I'm trying to decide if the EOS-M-tested lenses should be processed at Sharpness = 0 to be more equally represented with the rest of the lens tests - or if the standard setting should be adhered to.
 
All that said, I think that the Canon EF-M 18-55 is the lens that most people wanting a compact EOS M setup should be considering right now.
Posted to: Canon News
Post Date: 12/4/2012 8:17:18 AM CT   Posted By: Bryan
 Friday, November 30, 2012
Just Posted: Spider Camera Holster Review
 
The Spider Camera Holster is easily one of the best camera carry systems available. Check it out.
Post Date: 11/30/2012 10:51:00 AM CT   Posted By: Bryan
 Thursday, November 29, 2012
Just posted: Think Tank Photo Glass Limo Review.
 
The Glass Limo is an ideal carry/storage solution for a 500mm f/4 lens with a DSLR camera mounted. Or for a wide variety of smaller combinations and accessories.
 
Think Tank Photo now has the new Glass Limo in stock.
Post Date: 11/29/2012 9:10:56 AM CT   Posted By: Bryan
 Monday, November 26, 2012
 Monday, November 19, 2012
Posted to: Canon News
Post Date: 11/19/2012 7:28:20 AM CT   Posted By: Bryan
 Thursday, November 15, 2012
ISO 12233 resolution chart, flare, distortion and vignetting test results are now live on the Canon EF-M 22mm f/2 STM Lens Review page.
 
Obviously, these tests had to be shot with the new Canon EOS M MILC (Mirrorless Interchangeable Lens Camera). My Canon EF-EOS M Adapter just arrived, so I'll get some direct camera comparisons online in the near future.
Posted to: Canon News
Post Date: 11/15/2012 8:29:05 AM CT   Posted By: Bryan
 Tuesday, November 06, 2012
 Friday, November 02, 2012
Part II of the Canon EF 24-70mm f/2.8 L II USM Lens Review is now online.
 
I'm very pleased with the AF performance and image quality this lens is delivering. I've used it a lot since part I of this review - especially for fall landscape photography. The results are superb.
 
I'll add some sample pictures soon.
 
B&H and Adorama now have the 24-70 L II in stock.
Posted to: Canon News
Post Date: 11/2/2012 12:16:24 PM CT   Posted By: Bryan
 Thursday, October 25, 2012
The Canon EF 70-300mm f/4-5.6 L IS USM Lens Review has been updated to include Canon EF 1.4x III Extender and Canon EF 2x III Extender compatibility information including ISO 12233 Resolution Chart results. Here are the details:
 
The Canon 70-300 L is officially NOT compatible with Canon extenders. I've tried mounting Canon extenders to the 70-300 L - and they do not fit. The rear 70-300 L lens element physically hits the front element of the extender.
 
Then, in a major firmware update announcement for the Canon EOS 1D X, Canon included the 70-300 L and Canon EF 1.4x III Extender combo on a compatibility list.
 
Intrigued, I did more experimenting. What I learned is that the 70-300 L's rear element retracts into the lens far enough that, at about 250mm, there is enough clearance for Canon extenders to mount.
 
The available with-1.4x focal length range is about 350-420mm and 500-600mm with the 2x installed. Zooming out wider than the 250mm-or-so zoom ring mark results in a physical bump inside the lens. I'm guessing that it is the rubber around the edge of the extender element contacts the rear 70-300 L lens element or its barrel. I do not recommend mounting this combination due to potential damage the to lens.
 
I of course felt the need to try out these unsupported combinations. My solution to the damage risk issue was to Gaffer Tape the lens zoom ring to lock it at the 300mm mark while using extenders.
 
Mounting a 1.4x or 2x extender behind any lens reduces its aperture range by 1 or 2 stops respectively. At review time, only Canon 1-Series bodies can autofocus when using the very-dark f/8 max aperture the 70-300 L lens and 1.4x extender combination yields. Tested 1D X and 1Ds III bodies autofocused this combination.
 
No bodies can AF with the even-darker f/11 max aperture the 70-300 L and 2x combo yields. While it tries, the tested 1Ds III body cannot lock focus with this combination.
 
The interesting part of this story starts with the fact that the Canon Extenders do not report their presence when mounted behind the 70-300 L. The reported max aperture incorrectly remains f/5.6.
 
And what is much more interesting is that the 70-300 L and 1.4x combination's f/8 max aperture combination autofocuses even when mounted to the 60D (and presumably on most/all other Canon EOS bodies). Autofocus speed with the 1.4x extender is very, very slow on all tested bodies, but AF does work - even on the 60D.
 
Since I'm sure you are wondering what the image quality from these combinations looks like, here is a look at the Canon EF 70-300 L with EF 1.4x III Extender ISO 12233 image quality. Image softening from the 1.4x is very noticeable at f/8 in mid and outer regions of the image circle, though the center of the frame remains reasonably sharp. CA becomes pronounced with increasing amounts visible toward the outer image circle. Stopping down to f/11 results in modestly better image quality.
 
Here is a look at the Canon EF 70-300 L with EF 2x III Extender ISO 12233 image quality. Wide open, the results with the 2x installed are remarkably close to the performance of the 1.4x III, but more sharpness/contrast degradation is apparent - especially in the center of the frame. The 1.4x III takes a wide lead in the image quality race when stopped down to the with-2x's f/11 max aperture. Diffraction levels the results from both combinations at f/16. Again, the with-2x combination has problems locking autofocus.
 
While the image quality of the 70-300 L with extenders is not impressive, it can certainly be usable in a pinch (especially in the center of the frame with the 1.4x).
Posted to: Canon News
Post Date: 10/25/2012 7:00:00 AM CT   Posted By: Bryan
 Friday, October 19, 2012
Sample pictures have been added to these reviews:
 
Canon EF 500mm f/4.0 L IS II USM Lens Review
Canon EF 600mm f/4.0 L IS II USM Lens Review
Canon EOS 1D X Review (with some overlapping samples)
 
These are awesome lenses. I expect to post many more sample pictures from these lenses in the future - especially/hopefully after a White-Tailed Deer photo trip I have scheduled in Shenandoah National Park in the near future.
 
The 1D X is also awesome. I'm deep into my fall sports photography season and can easily say that I've never had a camera and lens combination perform as well as the 1D X and the "IS II" supertelephoto lenses. These combinations rock.
 
Note that I continue to include photography tips in most of the sample picture comments.
Posted to: Canon News
Post Date: 10/19/2012 7:33:15 AM CT   Posted By: Bryan
 Wednesday, October 17, 2012
The new Canon 1D X firmware special page includes the Canon EF 70-300mm f/4-5.6 L IS USM Lens (they actually say "f/4.5-5.6L") and Canon EF 1.4x III Extender combination under the "Current Canon EF Lens/Extender Combinations That Support Cross-Type Autofocus with Firmware Update Ver. 1.1.1 for EOS-1D X". (thanks John)
 
The problem is that Canon 70-300 L is not compatible with the 1.4x in the first place. The Canon USA website indicates that the 1.4x "... is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L." Granted, the compatible 70-200 f/4 L IS is missing, but the 70-300 L is not listed.
 
I've tried mounting the 1.4x to the 70-300 L before - and it does not fit. The rear lens element physically hits the front element of the extender.
 
What I just discovered, however, is that the 70-300 L's rear element retracts into the lens far enough that, at about 250mm, there is enough clearance for the 1.4x to mount.
 
The available focal length range is about 350-420mm. There is a physical bump at the lower end of that range with (guessing) the rubber around the edge of the extender element contacting the rear 70-300 L lens element or its edge ring. This combination indeed autofocuses on the 1D X with the new firmware.
 
I'll put this combination on the ISO 12233 chart testing list to see what the image quality looks like, but ... I'm not sure that I recommend mounting this combination due to potential damage the to lens. I'll try to find out what Canon says about this.
Posted to: Canon News
Post Date: 10/17/2012 9:06:30 PM CT   Posted By: Bryan
 Tuesday, October 16, 2012
I'm tackling a huge backlog of sample pictures this week. To get things started, sample pictures have been added to these reviews:
 
Canon EF 24mm f/2.8 IS USM Lens Review
Canon EF 28mm f/2.8 IS USM Lens Review
Canon PowerShot G1 X Digital Camera Review
Posted to: Canon News
Post Date: 10/16/2012 2:57:08 PM CT   Posted By: Bryan
 Friday, October 12, 2012
 Friday, October 05, 2012
Some image quality comparisons are now available on the Canon EOS Rebel T4i / 650D Review page.
Posted to: Canon News
Post Date: 10/5/2012 12:30:00 AM CT   Posted By: Bryan
 Wednesday, October 03, 2012
Posted to: Canon News
Post Date: 10/3/2012 10:29:21 AM CT   Posted By: Bryan
 Wednesday, September 26, 2012
Just posted: Part 1 (the major part) of the Canon EF 24-70mm f/2.8 L II USM Lens Review.
Posted to: Canon News
Post Date: 9/26/2012 7:18:01 AM CT   Posted By: Bryan
 Friday, September 21, 2012
The Canon EF 24-70mm f/2.8 L II USM Lens Review will be completed in two parts. Here is why.
 
I often preorder more than one copy of Canon's new lenses as I like having at least two sets of image quality results to work from. I seldom see much variation between the multiple copies, especially between Canon's higher grade L lenses. Unfortunately, two copies of the Canon EF 24-70mm f/2.8 L II USM Lens were not enough.
 
Copy 1 is extremely sharp - until 70mm at f/2.8 where its performance is only average and even trails the original Canon EF 24-70mm f/2.8 L USM Lens in the center of the frame. An ISO 12233 chart retest delivered identical results. Real world shooting confirms the test results. This lens is so sharp at the rest of the focal lengths and at 70mm f/4 that I was hesitant to return it.
 
A significant backfocus problem at 70mm (note that manual focus is used for image quality evaluation) made the keep or return decision a no-brainer as I need to be able to use this lens on non AFMA-capable DSLRs.
 
Copy 2 of the 24-70 L II is very sharp in the center of the frame at f/2.8 throughout the entire focal length range - including 70mm. The problem with this lens is that the mid and outer portion of the image circle is not as sharp at f/2.8 as copy 1 (example). This is perhaps a decentering problem.
 
I think lens 1 properly examples what we should expect up until 70mm. I think lens 2 shows what we should expect in center-of-the-frame image quality at 70mm. Since lens 2 is soft in the corners at the other focal lengths, I think it is also softer in the corners at 70mm than it should be.
 
My conjecture is that the Canon EF 24-70mm f/2.8 L II USM Lens is incredibly sharp across the entire focal length range and at least the vast majority of the image circle.
 
I expect to get past the unfortunate QC anomalies I've initially encountered and expect to show you how great this lens really is. I'm not sure when I'll have a replacement lens (or lenses) available (the 24-70 L II is impossible to find right now), but hope to complete part 1 of the Canon EF 24-70mm f/2.8 L II USM Lens review next week.
Posted to: Canon News
Post Date: 9/21/2012 8:34:42 AM CT   Posted By: Bryan
 Wednesday, September 19, 2012
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