[Hands-On] EF 24-70 f/2.8L II & EF 24 f/2.8 IS Lenses

This new lenses finally got a quick hands-on review at canonrumors. First impressions are rather good. About the EF 24mm f/2.8L IS:

It’s small, light and feels well built. The AF was fast and it appeared as sharp as any other Canon non-L prime on the surface. This would be a great prime to walk around with on a small body. A mirrorless with an EF adaptor?

About the 24-70mm f/2.8L II:

The new lens feels quite solid in your hand. Though I didn’t find it felt that much lighter, even though it technically is. If I had a version 1 beside it, along with its massive hood, I think I’d probably notice the weight difference then.

The zoom ring is quite smooth, and the lens now extends in telephoto and not at 24mm like the current version.

I tried it out on the 5D Mark III and found the autofocus to be silent and nearly instant to acquire initial focus.

Both lenses are available for pre-order:

EF 24mm f/2.8 IS for $849.99:

EF 24-70mm f/2.8L II for 2,299:

[via CR_1, CR_2]

[Video] EOS 1D-X Used In Extreme Weather Conditions

This is sort of a “making of” of the movie Shattered, by Tyler Stableford. And it features the EOS-1D X, used in extreme weather conditions. The video above is part 1 (the idea is born), the video below is part 2 (putting the idea into motion), next one is part 3 (RAW footage editing). The very last video is the trailer of the movie, which was presented April 2012 at NAB Show in Las Vegas. Latest EOS 1D-X rumor here.

EOS 1D-x preporter options: Adorama (click here), B&H (click here), Amazon US (click here).

 

 

 

[Review] EOS 5D Mark III Gets a Third Degree (by DPreview)

DPreview eventually published its 30 pages review (conclusion here) of the EOS 5D Mark III. I won’t anticipate too much here, just point out that the 5D3 has a “very sophisticated AF system with lots of fine-tuning potential and you’ve […] a super-flexible photographic tool that will get the job done on a wide range of assignments“, and that:

It quickly becomes obvious that the Mark III is a totally new camera with significant improvements over its predecessor. The new model takes many user interface elements of Canon’s flagship APS-C DSLR the EOS 7D and combines them with a 22MP full-frame CMOS sensor that is capable of capturing high quality output up to very high sensitivities.

Nevertheless, at DPreview they didn’t like everything the 5D3 has to offer:

We’re disappointed by how the 5D Mark III renders detail in JPEG files, and low-contrast details […] look rather mushy […]. At higher ISOs, noise reduction is more aggressive […] than we would like, resulting in comparatively clean but disappointingly soft images […]. The 5D Mark III’s sensor is capable of excellent results but if you want to get maximum detail you’ll have to shoot and convert raw files.

Well, if you want to get maximum detail you have to shot RAW with any camera. The review has a page dedicated to the video features of the EOS 5D Mark III (made by the people of EOSHD, see video above, click here to read their opinion on the 5D3 video features). For those who are in a hurry: click here for the high ISO review, here for the HDR mode, IQ high ISO comparison here, RAW IQ comparison here. Finally, the EOS 5D Mark III got 82 points out of 100, same as the Nikon D800.


World-wide EOS 5D Mark III availability and order (or pre-order, outside the US) options:

Asia & Australia: AliExpress, Amazon JAPAN, Amazon CHINA, Amazon INDIA, Amazon AU, Amazon USA, Digitalrev, Adorama, B&H Photo, eBay Australia, Rakuten JP
Europe & UK: Amazon DE, Amazon UK, Amazon FR, Amazon IT, DigitalRev, eBay DE, Wex Photo Video, Park Cameras, Canon DE, Canon UK, Canon IT, Canon FR
USA/Canada: Amazon USA, Amazon CA, B&H Photo, Adorama, Digitalrev, KEH Camera, eBay US, Canon USA, Canon CA, BestBuy

[DIY] How to Make a Cool POV Helmet Cam

Want to shoot footage like you are in a first person shooter game? Want it to be light on your pocket, and want to do some homework? Then this is for you. The video shows how to build a camera rig that can (easily) be mounted on a common motorcycle helmet (no, you don’t have to use a pink helmet). The rig is made with a helmet, a metal bar, a cheap tripod head and using some weights. The tutorial is easy to follow and building this thing doesn’t require particular engineering skills.

[via diyphotography via planet5D]

Low-Light Comparison: 5D3 vs 5D2 vs D800 – Next Take

I posted about this comparison before. Now the test has been redone with some parameter adjustment, mainly because of the different way these cams handle ISO (watch the video to learn more). Short conclusion (just my 2 cents):

  • Nikon D800: good sharpness, good dynamic range at low ISOs, color shift towards green
  • EOS 5D Mark III: very good ISO performance, good tones and colors, less sharp, better dynamic range at high ISOs
[via fstoppers]

Another Light-Leak Problem on a Canon Camera (PowerShot G1 X, this time)

imaging-resource published a detailed and exhaustive review of the PowerShot G1 X. And while the review confirms the many good features of the G1 X (high ISO performance, outstanding lens, good video performance, and much more), it appears that the tech-savy folks at IR found also a small problem that shows up in certain conditions: light leaking and finding a way to the sensor when it should not. The result are visible (and replicable) artifacts in the images (click here for a test shot showing the artifact). The problem occurs only at high ISO settings (>1600) and focal lengths around 50mm equivalent, and it’s most pronounced using an exposure of 1/4000. When all these parameters are given, then a «bright light source near the center or toward the bottom of the frame will produce a bright artifact in the center and right side of the image». Quoting (scroll down to the very end of the post to read about the problem and to see the test images):

The cause is likely a light leak or reflection through the lens assembly that makes its way around the shutter, allowing light to fall on the sensor either before or after the shutter opens and closes to make its exposure. Since the effect is most pronounced at 1/4,000 second, it seems that extra light is allowed to fall on the sensor after the shutter has closed to end its exposure, but while the sensor is still powered up to record light.

They sent the images to Canon asking for feedback. Canon calls the phenomenon “glowing dots”, but there are no dots. However, Canon states that «[d]ue to the limited circumstances under which the PowerShot G1X ‘Glow Dots’ phenomenon can occur, Canon does not plan to change the camera’s specifications or offer repair service for this issue.» It must be said that the setting where this phenomenon shows up is not a real world setting: you will hardly shot bright objects using a high ISO setting. True. Nevertheless, quoting imaging-resource again:

We want to note up front that this phenomenon is not very likely to show up in average everyday shooting situations, because most of us don’t shoot bright objects at ISO 1,600 to 12,800 at high shutter speeds. But those trying to achieve a special effect or even simply forgetting to change from a high ISO to a lower one when entering bright light might encounter the defect, just as we did.

Unfortunately the phenomenon occurs also when shooting a bright object, not only when there is a strong light source in the frame. Check the images of the garage door (click here) and this one to get an idea. The leak occurs through the lenses and not through the viewfinder or other openings on the camera (this was extensively tested). Concluding:

So what might be happening to cause this? While we can’t tell for sure, we think that light is bouncing off the shutter itself after it closes, but while the sensor is still sensitive to light. We think it’s happening after the shutter closes, because the effect doesn’t appear to be visible at slower shutter speeds: Our hypothesis is that the artifact is being recorded during a very short interval after the main exposure occurs. If the light levels are such as to produce a proper exposure with a shutter speed of, say, 1/60 second, the brief interval during which light from the leak accumulates after the exposure would represent a very small portion of the total exposure time, and so not be noticeable. Further supporting this theory is that the artifact fades relative to the main exposure as you move to lower ISO sensitivities, suggesting that the leak is being recorded for a relatively short, fixed duration.

Did anyone here notice the same issue on a PowerShot G1 X?

[via imaging-resource]