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Messages - Canon Rumors

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Site Information / Re: Canon Rumors Site Information
« on: April 01, 2012, 01:07:05 PM »
The ratings for forum posts has been a difficult one to figure out, so we're trying out some new things. For now, only a total karma score will show, so you won't see the likes and dislikes broken down. We'll see if that helps keep things honest.

I'm rather disappointed by the re-introduction of the karma system - it still gives a global evaluation and not a per-post one, and people who have a non-compliant opinion are still bound to end up down on the scale. This is because the main shortcomings aren't fixed:

* People will still click "dislike" if they do not agree with a post, i.e. dislike the argument
* You still don't know why you've got bad karma, making it impossible to adjust (or even to think about it)

It seemed more mature without karma in the short meantime because I don't need a rating to ignore troll comments and it doesn't replace a moderation of a forum.

We may be moving to new forum software, and will have the ability to do "post ratings" right off the bat. Currently there is nothing available for our forum solution. That IS an ideal solution and one we hope to have sorted one way or another.


Site Information / Canon Rumors Site Information
« on: April 01, 2012, 09:27:09 AM »
Hey, there are a few changes taking place at canonrumors.com that I thought I'd tell you about.

1) New server/host

Canon Rumors was moved to a new host last night and I don't think anyone really noticed. What you will notice is an increase in site speed, all measurements taken show a dramatic improvement. We're on better hardware and are running a better optimized setup. This will continue to be tweaked over the next couple of days.

2) Return of Karma

The ratings for forum posts has been a difficult one to figure out, so we're trying out some new things. For now, only a total karma score will show, so you won't see the likes and dislikes broken down. We'll see if that helps keep things honest.

It's now called "Reputation" until I figure out a better name.

It's going to get abused by some people, there's not much we can do about that. We just ask that you don't. :)

3) New site design

It's coming, looking to clean things up and make them a bit more uniformed between the site and the forum. This isn't in the immediate future, but it will be in the next 60 to 90 days.


Canon Rumors

Macro / Re: 9:1 macro
« on: March 31, 2012, 08:11:01 AM »
Very cool

EOS Bodies - For Stills / Canon EOS-1D X Delayed Again? [CR2]
« on: March 30, 2012, 12:31:35 PM »
From around the watercooler
I have heard from a couple of places that the Canon EOS-1D X may be delayed, yet again. The latest we’re hearing is that arrival of the camera body won’t be until June, 2012.

We’ve also heard allocation to stores is based on preorders from CPS members. In other words, CPS members will get to the front of the line for 1D X preorders. This may not be true in all countries, but it is in a couple I have confirmed.

This isn’t confirmed by Canon yet.


EOS Bodies - For Stills / Canon EOS-1D Mark IV Firmware 1.1.1
« on: March 30, 2012, 10:09:10 AM »
Most won’t need this one.
Canon has released a firmware update for the EOS-1D Mark IV.

Affected Product

  • EOS 1D Mark IV

Firmware Firmware Version 1.1.1 incorporates the following change.

  1. Optimizes the camera’s exposure accuracy when using EF 24mm f/2.8 IS USM and EF 28mm f/2.8 IS USM lenses, which are scheduled for release in June 2012. If these lenses are used with an EOS-1D Mark IV camera that has not been updated with the new firmware, the image may be overexposed depending on the subject and shooting scene.

The new Firmware Version 1.1.1 can be downloaded by clicking here.



Lenses / Patent: A new 16-35 f/2.8 or Faster Concept?
« on: March 30, 2012, 12:16:43 AM »
Improved Canon ultrawide for full frame?
The world is waiting for Canon to release a top end performing ultra wide lens for full frame cameras. While I think the 17-40 f/4L is a bargain of a workhorse and the 16-35 f/2.8L II is a very solid performer, I think the line is still lacking that standout ultra wide zoom lens. I have heard numerous photographers say they’d pay “anything” for a top notch lens in that segment.

Below are 3 patented optical formulas for new ultrawide angle lenses for Canon.

A 16-35 f/2.8, a 17-35 f/2.8-4 and a 16-35 f/2-2.8. There seems to be a decent amount of f/2 patents appearing on zoom lenses from Canon, it could be time for such a lens to make it to market.

Patent Publication No. 2012-63568

  • 2012.3.29 Release Date
  • 2010.9.16 filing date

Example 2

  • Zoom ratio 2.06
  • 24.00 – - 33.95mm f = 16.48 focal length
  • Fno 2.90 – 2.90 – 2.91
  • 42.03 – - 32.51deg 52.70 angle of view.
  • Image height 21.64mm
  • 170.87 – - 172.62mm 178.10 full-length lens
  • BF 40.00 – 48.45 – 61.71mm
  • Lens Construction 12 group 17 sheets
  • Three three aspherical surface
  • 2 UD lens sheet

Example 4

  • Zoom ratio 1.94
  • 24.01 – - 33.98mm f = 17.51 ​​focal length
  • Fno 2.91 – 3.21 – 3.86
  • Image height 21.64mm
  • 174.18 – - 175.92mm 178.81 full-length lens
  • BF 41.60 – 48.49 – 60.70mm
  • Lens Construction 12 group 17 sheets
  • Three three aspherical surface
  • 2 UD lens sheet

Example 6

  1. Zoom ratio 2.06
  2. 24.02 – - 33.99mm f = 16.49 focal length
  3. Fno 2.15 – 2.46 – 2.94
  4. 42.02 – - 32.48deg 52.69 angle of view.
  5. Image height 21.64mm
  6. 171.08 – - 172.88mm 176.23 full-length lens
  7. BF 39.26 – 46.99 58.75mm
  8. 18 sheets 13 group lens configuration
  9. Three three aspherical surface
  10. 2 UD lens sheet

Canon’s patent

  • 4-group zoom lens of a positive negative positive and negative
  • Inner Focus
  • Optimized so as to reduce the field curvature of the wide-angle side

Source: [EG]


EOS Bodies - For Stills / A Nikonian Reviews the Canon 5D Mark III
« on: March 29, 2012, 06:04:26 PM »
A Nikonian loves the 5D Mark III
Nikon wedding photographer Ryan Brenizer took the 5D Mark III to a wedding to discover it’s a pretty good camera. It’s a good review, as he does point out a few weaknesses.

Ryan’s conclusion

Right now, Canon is primarily competing with the Nikon D800. At $500 cheaper and with a high-resolution, high dynamic range sensor, the D800 will be a tempting option for most users. For someone like me who takes more than a quarter million photos a year, the idea of a sensor that only shoots 36MP is a non-starter.

More importantly, Canon has built a near-perfect wedding camera. Great at high ISOs, accurate and customizable autofocus, speedy and quiet operation and with versatile RAW resolution, this camera is finally a worthy companion to Canon’s huge array of lenses. On either the Nikon or Canon side, you can’t use the camera as an excuse anymore.

Read the entire review and check out his great photography here.

Thank Sara


Buy the 5D Mark III at B&HAdorama and Amazon

The 5D Mark III get support
Adobe has released Lightroom 4.1 release candidate and it now supports the Canon EOS 5D Mark III.

Other bug fixes were also addressed. Expect to see a final version of Lightroom 4.1 next week.

New Camera Support

  • Canon EOS 5D Mark III

Fixed Issues

The following issues have been fixed in the Lightroom 4.1 release candidate:

  • Lightroom 4 did not properly open external applications when using the “Edit In” functionality.
  • Point Curve adjustments made in Lightroom 3 have been restored.
  • Addressed performance issues in Lightroom 4, particularly when loading GPS track logs, using a secondary monitor, and the controls within the Develop module.
  • Ability to update DNG previews and metadata for more than 100 photos has been restored.
  • This update allows for improved viewing of subfolders and stacks in folders with a large number of photos.
  • It was possible that a layout of a saved book could be lost after quitting Lightroom 4.

Download Here


EOS Bodies / 5D Mark III & Possible 1D X Issue With PocketWizards
« on: March 29, 2012, 02:23:01 PM »
I received the following report about PocketWizards and the 5D Mark III. I have not confirmed this myself.

Been using PW products for 8 years now. I currently have a Canon 1D Mark IV, which works great up to 1/800 at the studio with hyper sync, and preordered a 1D X. I just bought a Canon 5D III and won’t sync at shutter speeds higher than 1/160 using Mini TT1 and Paul C. Buff Einstein Flashes fitted with Poceket Wizard Power MC2′s. Any speeds higher than that, it will give u the dark band on the bottom of the frame.

I called Tech Support and they say it’s not compatible yet and although the 5D III should sync at at least 1/200, the actual speed of the shutter is lower (approx 1/160). They don’t even have a test camera yet and they expect the soon-to-be-released 1D X not to be compatible either. They will be working on a firmware update as soon as they have a 5DIII to work with.


EOS Bodies / Re: This web site is making me question why I lurk here
« on: March 29, 2012, 10:53:26 AM »
Great read, thanks for sharing.

I am conscience of the issues you're speaking of, and were trying to figure out a solution to change the dynamics of some of the conversations.

I always appreciate people that "report" posts, we do read those and usually agree and take the appropriate action. Anyone can do it.


EOS Bodies / Canon Invite April 16, 2012 at NAB
« on: March 29, 2012, 08:47:50 AM »
Technical Invite
Canon has sent out another invite for April 16, 2012. This will be beyond the screening from the other invite.

Could this be the hoped for 4K DSLR Canon has already teased the world with? As some would say, is this what videographers wanted the 5D Mark III to be?

We have heard the 4K DSLR would be announced sooner than later, however it’s rumoured availability would be in the distant future.

Source: [HDM]

Thanks Ivan


*UPDATE* Canon’s Official Response
Canon USA has issued an official response to the 5D III IS noise issue:

“We have acknowledged that when using the camera with specific lenses, there is an abnormal noise during IS operation when the shutter button is pressed halfway (or remains pressed halfway), and we are now considering the countermeasures. We will let you know about the countermeasures as soon as they are finalized”

The two affected lenses are the Canon EF 200mm f/2.0 L IS USM Lens and the Canon EF 800mm f/5.6 L IS USM Lens.

Note that image quality is not affected by the abnormality. Also note that this noise does not occur during Live View including during video capture.

The Bugs No camera these days is going to launch issue free, and a very noticeable one has shown up with the 5D Mark III is used in combination with the EF 200 f/2L IS. The issue being an odd and rather loud noise from the what seems to be the image stabilizer. I have noticed this first hand while using the combination in AI Servo mode.

Others have noticed it, and there’s a thread on the FredMiranda forums about it.

I have tested multiple 5D Mark III bodies with the following lenses. I also tested multiple 1D Mark IVs with them as well.

  • 300 f/2.8L IS
  • 300 f/2.8L IS II
  • 400 f/2.8L IS
  • 400 f/2.8L IS II
  • 400 f/4 DO IS
  • 500 f/4L IS
  • 600 f/4L IS
  • 800 f/5.6L IS (this came out the same time as the 200 f/2L IS)

Conclusion I could only obviously reproduce the issue with the EF 200 f/2L IS on the 5D Mark III bodies, there was zero issue with the 1D Mark IV.  I have two EF 800 f/5.6L IS lenses, and initially I didn’t notice the noise, but it is slightly there once I took the lenses out of the office. It sounds a bit louder on the 5D Mark III than on the 1D Mark IV although the 200mm is definitely louder. I could be hearing things on the 800.

I have noticed images aren’t quite as sharp with the EF 200 f/2L IS on the 5D Mark III, I imagine it has something to do with the IS issues in AI Servo mode.


Lenses / Canon EF 200-400 f/4L IS 1.4x Finally Ready? [CR2]
« on: March 28, 2012, 09:43:26 PM »
Official announcement soon.
I’m told we’re going to see an official announcement for the Canon EF 200-400 f/4L IS 1.4x lens soon. I’m told once production (availability in May) of the EF 500 f/4L IS II & EF 600 f/4L IS II are going strong, the new zoom will be officially announced.  Expect stock to arrive fairly quickly after the announcement.

Expected retail price is around $11,000 USD.

EF 24-70 f/2.8L II I’m still hearing a release date of April 17, 2012 for the new version of a classic. Everything I have been told about this lens has been unbelievably positive. I’ve heard “best zoom Canon has ever made”, “fastest focusing” & “unbelievably sharp” on numerous occasions.

Preorder the Canon EF 24-70 f/2.8L II at B&H & Adorama for $2299.

EF 24 f/2.8 IS & EF 28 f/2.8 IS Both are still slated for the end of June.


Lenses / Patent: Canon EF 2.8x Teleconverter
« on: March 27, 2012, 07:55:35 AM »
Patent Time
A patent showing a new teleconverter has made an appearance. It appears to be a 2.7 or 2.8x TC. What effect woud it have on aperture? A 400 f/2.8L IS II would become 1120mm at f/8. All well and good, but the missing f/8 autofocus on the 1D X makes this one a bit strange with the current line of camera bodies.

Patent Publication No. 2012-47869

  • 2012.3.8 Release Date
  • 2010.8.25 filing date

Example 1

  • -83.98mm focal length
  • Expansion rate β = 1.996
  • Lens Construction 5 group nine

Example 3

  • -41.91mm focal length
  • Expansion rate β = 2.779
  • Lens Construction 5 group nine

Canon’s patent

  • Rear converter is to increase the focal length, F number, the residual aberration
  • When doubled, twice the lateral aberration, longitudinal aberration is 4 times greater rate of expansion, because the F-number is also double, longitudinal aberration is twice per depth of focus
  • Rear converter configuration consisting of three groups of positive and negative positive
  • Reduce the aberration of the rear converter itself

Source: [EG]


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