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Canon Patent Application: Canon TS-R lenses

Can anyone enlighten me why need TS on telephoto when UWA is much more needed?
What would people use a 180mm or 200mm tilt shift lens for?
I know people using them for architecture, products…but 200mm? Just curious.


To tilt the line of focus from perpendicular to the optical axis of the lens.

For example, you're shooting high school football from the sideline and you want a photo showing the offensive and defensive lines engaging shortly after the snap. If you're behind the offense on the left side of their formation the end closer to your sideline is much closer to you than the other end. If the players on your end are the point of focus then the other end will be fairly blurry at f/2.8 (It's a night game and you have to use ISO3200 at f/2.8 just to make 1/800 or 1/1000 possible). Or vice-versa.

Now take a lens with sideways tilt (sometimes called swing) to the left. The "plane" of focus will shift to closer on the left side of the image and further on the right side of the image and more of the line of scrimmage that is angled away from you on the right will be in focus.

The reason I know this is because after my 70-200/2.8 took a nasty fall it had a pronounced tilt that was mostly to the left. I had to shoot around it until I could send it in to CPS.

Compare the grass on the lower left to the grass on the lower right. Then compare the trees behind everything on the left to the right. Autofocus was aimed on the sign attached to the shipping container in the center of the frame. [Apparently the EXIF info is stripped by CR. Canon EOS 7D Mark II + EF 70-200mm f/2.8 L IS II. 70mm, ISO100, f/2.8, 1/5000. This was one of several test shots I included on a CD-R when I sent the lens to Canon Factory Service.]

201609080120HR.JPG


CPS sent it back as sharp and straight, if not sharper, than when it was new. The description of the repair said "electronically adjusted". I'm guessing they biased the "neutral" position of the IS group. The reason I'm guessing that is about a year or so after that my IS starting acting up. When the camera/lens was held at certain angles with respect to gravity the IS would vibrate continuously and rapidly. Looking through the viewfinder made whatever was in the frame look like it was shaking violently. This progressed until there were ever increasing positions where this occurred and I had to send the lens to CPS again to get the IS unit replaced.
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Sony announces a9 III with global shutter

How exactly is Canon behind? The R5 was the first FF Camera to shoot FF 8K RAW video (albeit with heating issues that were address through firmware). The Canon R3 was the first FF Camera to shoot at 30 fps with full 14-bit RAW files and frankly it still is until the Sony A9III becomes available in Q1 2024!
trollogic?
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The world’s most popular camera* is…Canon

Some of the Apple aficionados out there may be familiar with the backstory of the iconic warning sound, at least with one of the many versions of the story. The true version was shared by the developer who created that and other system sounds.

Back at the end of the 80’s when System 7 was being written (two versions later than System 5 that came with my first Mac), Apple Computer was being sued by Apple Corps (The Beatles’ music company) over their name, so their lawyers told them to steer clear of anything to do with music. The developer made a xylophone sound he wanted to call Chime, the lawyers said ‘too musical’. He then jokingly proposed ‘Let It Beep’ before deciding on Sosumi, as in So Sue Me, in honor of the ongoing litigation and the name stuck.

Now, what the heck does any of that have to do with photography? That developer also created the System 7 sound for a screen capture. That same sound is used as the ‘shutter sound’ for the billions of iPhones out there taking pictures.

The source? A recording of the shutter sound of his own Canon AE-1.



*popularity as determined by shutter sound, based on research conducted by @neuroanatomist on November 8, 2023

Rumors from sony: Global shutter on the A9 III

I doubt if the R5Mk2 with have a a GS, but would anticipate a stacked sensor. If the R5Mk2 is a non-stacked sensor it would be a disappointment.
non-stacked = less sport-centric. If it's giving a7r5 a good fight,I don't see why anyone will criticize it much with price in consideration. R5 hold against a1 well in sport events because the mechanical shutter is still 10+fps.
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A look at the Canon RF 24-105 F2.8L IS USM Z MTF

That's what I am hoping for. and no focus breathing creating issues will be huge for this (if true). I have missed shots because of focus breathing. Even other brands that have "focus breathing corrections" still have that issue. So I'm hoping this solves focus breathing issues, so I am missing less shots.
When you say 'focus breathing', do you mean 'focus shift' or 'non-parfocal' instead? Focus breathing affects framing, not focus.
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Canon Introduces Three New Lenses, Enhancing Still Photography and Video Production for Any Skill Level

It's worth taking a look at not sp much for sharpness, but more for seeing what's getting cropped off - It's more than I guessed
Thanks for pointing me in that direction. I guess I should take a look. I can't imagine why anything would be cropped off but I suppose it'd be obvious enough it I took a look...
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Lens design: why all RF zoom lens don't have a LOCK button?

Funny, I've wondered about the 15-35mm myself, though on mine there has never been even a tiny amount of "zoom creep." It's always been very tight. Still, it would certainly be a good option as time goes by, because I'll admit I have not used that lens as much as others over the several years I've had it.

Maybe version II will have it? If there is a version II.
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Lens design: why constant apertures?

I do like my constant aperture lenses a lot for the convenience. But with Canon tickling extra millimeters out of every existing lens design and not being afraid of heavy corrections I was wondering if there's anything preventing them from opening the aperture a bit.
It would be great if the 200-800 f/9 zoomed out to 400 f/4.5 and 200 f/2.25, which they could in theory do.
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The Trinity is Dead, Long Live the Trinity!

Fair enough, I'd like to see an example of this. I think you have the 24-105/2.8 on order? You shoot indoor nighttime high school sports or similar?
I did preorder the 24-105/2.8. Concerts/events/sports, both indoors and out (typically at night with high school lighting). The 24-105/2.8 will pair perfectly with the 100-300/2.8 for me.

Once it shows up, perhaps you'd have time to shoot some shots with 50k at f/2.8, and 100k at f/4, and perhaps additionally 50k at f/4 but double shutter duration. That'd be I think a huge lesson to all of us of the utility of 24-105. That would really be exactly what Canon needs to sell this lens: new lens gets the shot, but the old one is either too noisy or too blurry. (Or simply not enough bokeh to make subject pop at modern typical presentation on big LCD monitors.)

And it would also wipe out my objection that "if f/4 doesn't do it for you, it's unlikely f/2.8 will suddenly be enough." If you can show that f/2.8 really looks so good that f/2 (f/1.4, f/1.2) simply isn't worth considering, and yet f/4 just has too much noise, motion blur, or DOF, you'll have totally disproved my theory.
I doubt your hypothesis can be disproven, because it's all a matter of judgement and personal taste. Does f/2.8 blur the background more than f/4? Objectively, yes. Is the background at f/4 not blurry enough? Depends on the shot and who's viewing it. Will f/2 or f/1.2 have a creamier background than f/2.8? Yes, but the tradeoff is the flexibility in framing you get with a zoom.

You can categorically state that FOR YOU, f/4 is just fine and there's no need for an f/2.8 trinity. But only for you.

Also to be clear I admit I was over-speaking when I said "the ONLY reason" and "NO-ONE needs" this. I'm sorry about that. I still stand behind my general argument that f/2.8 trinity is INCORRECTLY treated as the go-to no-brainer automatic decision any pro would make. You (or at least, indoor nighttime sports shooters) may be a special case. And yet this lens isn't being described as a narrow tool for indoor nighttime sports shooters but rather something a huge number of pros might consider.
There are lots of situations when one stop matters. Think basketball with a 15(16)-35/2.8 under the net. Light is not great, and the 1/500 s will be have motion blur but 1/1000 s will not. I don't shoot in those types of settings (not that close to the action), which is why I swapped my EF 16-35/2.8 II (<1% of my shots were wider than f/4) for the EF 16-35/4, then that for the RF 14-35/4. But for normal and longer focal lengths, I find f/2.8 better in many cases.

Specifically regarding the 24-105/2.8, the 70-200/2.8 is a great lens for portraits and I often use it in the 70-100mm range for that. I think the 24-105/2.8 will become an automatic no-brainer for pros because it enables wide shots, portraits, and low-light use without a lens change.
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Canon Inc. releases Q3 2023 Financial Results

Cameras do better than most electronics but they still depreciate pretty quickly.
The price of the R5 just recently started to drop but it normally would have dropped a lot sooner.
All of Canon's DSLRs have finally dropped to be about on par with their mirrorless equivalents.
This does not usually apply to lenses but all of the Canon EF lenses that I own have significantly dropped in price just to piss me off.
I am not sure if deprecation is the right word though. Product lifecycle normally has a premium for initial buyers, then a normal production run, moving to cashcow when production is optimised followed by end-of-sale. The cost is up at the beginning, flat when R&D is being amortised, optimal when R&D costs are fully amortised then higher with final runs.
The price to customer is a marketing decision. I mentioned exchange rates as the USD has appreciated significantly against a basket of currencies including the Yen. I am seeing R5 specials locally under AUD5k but still a lot of volatility.
The 5Div was still commanding a premium vs the R last I saw. I didn't quite understand the price difference but I guess some pros want to replace their 5D until the R1 (maybe) comes out.
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Looking for 600m lens for wildlife videography

I'll be using the C70 for this particular project as we have a rarely used "C CAM" on standby that I can bring along on off days. It's not oversampled 4K, but the base ISO is 800. The image really is fantastic, as is the dynamic range, but it does still need to be exposed correctly to get the most out of the sensor, so I'd say f/11 is gonna leave me unable to shoot in anything but the brightest days. I have to say that I'm quite taken with the idea of using the 300f/2.8 with a TC so I get to keep the DOF. The Sigma version is also really not that expensive, comparatively.
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Here is the unannounced Canon RF-S 10-18 f/4.5-6.3 IS STM

The EF-S 10-22 is an excellent UWA lens for a crop camera. I used to have it. Unfortunately it was in a bag that was stolen back in 2009 one year after I had bought it!
They are on sale for less than the 10-18 at Canon Refurb. https://www.usa.canon.com/shop/lenses/refurbished-lenses?p=9
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Canon Patent Application: Stacked Sensor Black Level Improvements

In this patent application, Canon discusses improving the ability to improve the consistency of the sensor’s black level. For a little background information, Canon RAW has a floating black level governed by masked pixels that surround the sensor. The number of masked rows and columns that surround the image sensor portion that takes the image

See full article...

Humor: The Kübler-Ross model applied to photography

Not 100% sure if it fits that way.

Especially "Acceptance" is not seen very often.
Or let's redefine it in "Acceptance that one is the only one who recognizes the "truth"" ;)
I don't think it fits as more than a little levity, I would be surprised very surprised if someone with a formal education in the subject gave this any merit. I'm not even sure if the Kübler-Ross model itself is considered useful anymore
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