• The Canon Rumors Forum has officially been shut down as of July 10, 2026.

    All data will be deleted on September 16, 2026.

    the ad free experience will return by July 17, 2026.

DXO claim 1DX2 new class leader

Woody said:
dilbert said:
Eyes are easily deceived, hence optical illusions. The brain is also bad when it comes to "remembering."...

In the end, the best proof of something as absolute is math and science - not your eyes or brain. Ask any scientist about how reliable "eye witness" statements are vs something that is measurable/recordable.

Errr... in this instance, eye observations do not agree with DPReview's conclusion... and neither do the numbers from DXO. So how????

index.php
I don't know what you were looking at or comparing as you only posted the DXO graph.
I've attached a screenshot of the DPR RAW studio samples for the D5 and 1Dx-II.

What we are looking at here is the roughly 18% grey patch on the colorchecker (which corresponds with DXO's SNR-18% graph)

Lenses used in the DPR studio test:
Canon 85/1.8 vs Nikon 85/1.8

According to DXO lens test, The Canon 85/1.8 has about 0.1Ev more vignette @ f/5.6 and has in the range of 0.2-0.3Ev less transmission than the either of the Nikon 85/1.8 variants.

So the 1DX-II has roughly 0.3Ev less light at the sampling point given the relative position of the sampling point in the field of view.

Given that the Canon 1DX-II 18%patch looks extremely highly similar to the D5 18%patch even with 0.3Ev less light, is it not a fair assessment that the Canon 1Dx-II is slightly better. This happens to line up :P with the SNR18% graphs produced by DXO.

Attachments

  • SNR-18ish.jpg
    SNR-18ish.jpg
    180.8 KB · Views: 151
Upvote 0

DxO comparison: Sony 24-70/2.8GM vs. Canon 24-70/2.8LII

quod said:
neuroanatomist said:
Oh wait...it's dilbert. ::)
Oh wait...it's neuroatonomist...making smarmy comments about other posters on this site while lurking in a Sony thread...a "system" for which he takes extensive efforts to denigrate at every opportunity. How original. ::)

So, do you support dilbert's contention that the Sony Sony 24-70mm f/2.8GM 'kicks Canon's butt', or are you just engaging in more typically tangential tripe?
Upvote 0

Which adapter for C/Y lenses on 5DsR? using Zeiss C/Y 16 mm F-Distagon

i have a Zeiss F-Distagon 16 mm with a Haoda CTX-EOS adapter that works well with my 5D2. However, on my 5DsR, the camera gives me a lens communication error (error 20), but only if I fully engage the lens with adapter (clicking sound when mounting the lens). When I unmount the lens by just a bit away from the click stop, the camera takes pictures with that lens; took a while to figure that one out. The error even occurs in Manual mode.

Is there a C/Y to EOS adapter that works well on 5DsR?

UPDATE:

it is a compound problem. At infinity focus the rear lens baffle interferes with the mirror on the 5DsR. Solution. Mount lens set to close focus, engage live view, re-set focus to infinity (or wherever needed), shoot in live view. When turning live view/camera off, first put lens to close focus again.

1DX2 illuminated focus points

Hi Jack,

Yeah, whilst the issue didn't appear to affect any other operation (as far as I have tested things), such an obvious and visual "featurette" does undermine your confidence in the product as a whole - if quality control missed something I noticed straight out the box, what else did they miss? From what I've read, each 1DX2 is assembled by a single person rather than on a more traditional production line. Sure we all have off days but the whole reason for the one-person-builds-it is to improve QC.

You also have to take a long term view. One of these days I might sell it (1DX3??) and any prospective buyer might ask what's up with the display points? Ah, but you only think it's an issue! Okay, then sell it to someone with lower standards than me!

Enjoy your weekend.
Upvote 0

A photojournalist who uses Canon comments on the EU and video limits.

The link does not work for me. ISE 500 error.

I am not Yon's biggest fan as I find him to be far too self promotional and never shy to use flammatory subjects to achieve more hits/fame etc.

I do quite a bit of video and have, over the years, encountered the 30-minute regulation only once. Frankly it is a non-issue, as if you know what is going to happen you plan accordingly. You may lose a second of image, perhaps two. Or you can stop recording during a break in proceedings before you get to 29:59.

It is such a rare occurrence I wonder why it gets discussed so much.

If you really want to frequently shoot continuous video for longer than 30 minute without a single 1-2 second pause to restart the clock, then perhaps you should not be using a DSLR.

You will also need plenty of batteries. When I am at an all day event with different sessions through the day, I plug my charger in, shoot, change battery charge one, replace repeat etc.
Upvote 0

Canon product release

Hope you receive it soon. And please post some pictures and your review. Have fun.


thetechhimself said:
Sunny,

Speaking of the devil, the 28mm macro, immediate backorder; I placed my order REALLY early, it should've shipped.

Translation to english, real launch date 1-3 months from now, except the backorder doesn't say how long the backorder is, so could be longer.

So, we have one more sales strategy for the books, indicate a ship date, and then when the day comes, it flips into backorder for the real date.

Shameful; Nikon would be proud of their marketing, makes them look like they're shipping product first when in fact they're just as bad with 6 month waits...
Upvote 0

Ditching One Shot and shooting AI Servo fulltime

BL said:
So I've never owned a camera I felt confident enough to trust in AI Servo until I started shooting with the 1Dx. Old habits die hard though, and I'd still been toggling between one shot and AI-Servo based on subject matter. I've always held this pre-conceived, personally unfounded notion that One Shot would be more accurate than AI Servo on stationary subjects. Given how amazing I found AF accuracy to be on the 1Dx, I decided to test my theory by exclusively using Servo mode for all non moving subjects.

In the past month I've shot mostly portraits, some landscape, and quite a bit of macro. At the pixel level, I can't tell any difference in regards to focus accuracy between shots taken using One Shot vs. AI-Servo based on my real world use. Granted, I have my shutter release priority biased towards focus as opposed to release. I don't see myself using One Shot ever again as far as I'm concerned, and I appreciate not having to press a button or switch modes to engage Servo if something does start to happen unexpectedly.

Can anyone think of any cons to using AI servo fulltime and ditching One Shot if I I'm able to achieve the same level of accuracy? (ok yes, as a concession I'm taxing the battery, but battery life has become a total non issue for me having moved to a 1D body)

Thanks in advance!

Ive since switched to back button AF however i still have my DOF preview button set to toggle between servo and one shot AF. I cant say for sure yet on the 1dx2 but on 5d3 and 7d2, one shot focuses better in extremely low light. That is about the only benefit that is important to me. Being able to AF and then recompose is taken care of with back button af.

Another option i have configured is the AE lock button. I use that to recall a custom configuration that only enables AF in spot af mode. This allows me to quickly switch between some other af mode and spot af rather quickly. Even on the 1dx2 only a limited number of buttons support that. If i recall correctly only the AF off and ae lock buttons.
Upvote 0

Mark II surpasses both the Nikon and Sony by nearly +0.5EV

Thank you for the explanation ace

Im just still pissed that I waited 4 years to see my pictures look the same at ISO 6400. Its actually a tough decision between using my 5dsr and 1dx mk2 even for sports bc the low light high ISO froze for a generation. I can get so much detail and noise reduce so well with the 5dsr that it gives me a better image than the 1dx mk2 but its lacks the autofocus of the 1dx mk2. If they had a 5,000 version of the 5dsr in a 1D body with the 1dx mk2's video capability and autofocus Id probably buy it and not use the 1dx mk2
Upvote 0

Hasselblad Announces Groundbreaking X1D Medium Format Mirrorless Camera

The groundbreaking aspect of this camera is not how it compares to a FF DSLR but how it compares to a leaf shutter equipped MF competitor.
It brings mirrorless, leaf shutter 50MP CMOS at under $10k. Lenses are very affordable in comparison to competing LS MF glass.

The shortcomings it may seemingly have are largely in comparison to cameras it is not seeking to displace.

It will get a lot more well heeled enthusiasts looking for high performance but are not shooting BIF, sports or astro.
Pros looking to make the jump to MF can now justify the investment.

Of course this just increases the tension in the wait for the Fuji MF offering.
Upvote 0

Anyone else interested in 1Dx M2 with APS-c sensor?

Guys less testing of cameras regardless of APS-C or FF and more on lenses. Recently was testing filters on the 5DS using a light sphere fitted with a CIPA high resolution chart. I used a number of different Canon L lenses we have and was shocked at just how bad some were (we tested with & without filters to see how much of a resolution loss the filters were producing). The difference being talked about regarding resolution between APS-C & FF sensors are not real world in the life-cycle of CMOS today whereas differences between lenses are and on that I would differ with Keith at Northlight it pays to check any new lens you purchase fully and exchange it if your unhappy.
Upvote 0

Sigma Finally Ready to Enter the Cinema Lens Market?

#0wned

CanonGuy said:
YuengLinger said:
Having the main subject out of focus most of the time will be so very artistic!

1. probably these will be manual focus lenses.
2. I own 50 and 35 art, don't get a single out of focus image ever. just check out the lens before you buy, it isn't that hard.
Upvote 0

EOS 1DX2 impressions from a 1D first timer

Lightning strikes in remote areas are often the cause, but some are people caused - intentional or not. Lightning can cause many spot fires over large area that then merge into one large fire. Many years ago my dad was the navigator/bombardier on a B52 crew. They aborted their training mission when they spotted a bunch of fires started by lightning. He used the bomb site to pinpoint the location of each fire while they circled the area and radioed them to the forest service. The wing commander was mad they aborted their mission until the forest service called.

Perhaps I should stick to Flickr for samples.
Upvote 0

5Diii unresponsive after long exposures

Disable LENR.... your camera is trying to take a "dark frame" for noise cancellation, and it will try to take one of the same exposure length as the original image. Just set the camera for a 5 second exposure..... the image will take 5 seconds and then for the next 5 seconds the camera will be "locked" as it takes the dark frame.... try a 10 second exposure and it will be "locked" for ten seconds.... take a 30 minute exposure and the camera will be "locked" for 30 minutes....
Upvote 0

Patent: Canon 70-200mm f/2.8 DO

Luds34 said:
Is that true? That the 70-200 f/2.8 IS II is not parfocal? I guess I just sort of took for granted that a number of the higher end lenses were parfocal. I do own the f/2.8 non-IS. I also believe my other zooms are parfocal.

I mostly shoot primes but I should keep this in mind for when I shoot zooms. I'd hate to be focusing, then at the last second tweaking the zoom a bit for better composition, not realizing I'm adding a slight softness to the shot.

I admit I haven't tested other Canon 70-200/2.8L lenses other than mine, but it's consistent with reports I've heard. I tested it by shooting wide open on my then-Canon 5Dii at 70, 100, 135, and 200 marks wide open at closest focus and 10m distance. Subject was my living room. I focused at the 200mm position and pixel-peeped the results in center and corner. Sure seemed parfocal at 20mpx! Zoom while recording video always looked splendid at 1080P (2 megapixel FTW).

The reason I think concerns still photo history. At the dawn of the computerized lens design age http://blog.camera-wiki.org/2012/03/13/vivitar-historical-research-part-1/ when manual focus was the only game in town, the incumbent major brands Canon, Leica, Pentax, Nikon,,, made carefully-engineered zooms that were all parfocal. (Caveat: I was too young to hold a camera back then, and I'm not an optical engineer this info fits my research.) In that era, pros would zoom all the way in, focus the split image, then zoom out to compose. Challengers Vivitar, Sigma, Tamron, etc discovered by relaxing the requirements allowing varifocal and variable-aperture lenses, they could produce lighter and sharper lenses than the incumbents.

Fast forward to autofocus days, it no longer was a requirement for a lens to be parfocal since people relied demanded fast and accurate autofocus first, so little by little, they stopped making compromises required to achieve the "true zoom" (parfocal).

Most zooms from the past are slow, dim, heavy, and flawed. Pro zooms for their day produce ok images -- I'd say comparable to consumer zooms of today in IQ, but with a very different color rendition, less crisp.
Upvote 0

Any rumor of a Zeiss Milvus 180/200mm (f2.8)?

photojoern.de said:
No chance in my opinion. There are phantastic opportunities in the market, the 70-200 f2.8 with a fast autofocus, 4 stop IS and amazing picture quality. And a 200mm f2.0 if you are in the extreme boquet / portrait area. I do not see the market for such a Zeiss lens. What would it be, what would be the application?

Mainly 1:1 macro (research) and prolly studio portraiture. Even 200/2.0 if I might wish that just as Canon has one.
Upvote 0

Review - Tamron 85mm f/1.8 Di VC USD

JP4DESIGNZ said:
TWI by Dustin Abbott said:
JP4DESIGNZ said:
TWI by Dustin Abbott said:
JP4DESIGNZ said:
TWI by Dustin Abbott said:
douglaurent said:
The Tamron 85/1.8 is really great and even works great with the video autofocus of the 1DX2. If they do a 135/2 VC and 24/1.8 VC that would be awesome.

BUT there are major incompatibilities between the 1DX2 and other Tamron lenses like the 15-30/2.8 VC or the lightweight superzoom 28-300, who don't work at all! TAMRON AND CANON PLEASE WAKE UP ASAP AND FIX THIS!!!! These bugs are especially annoying when it's happening with the most expensive DSLR and lenses that have no alternative on the market.

I'm sure that Tamron will have a firmware update for the lenses, but this is one area where having the Tap In console compatibility will be nice for future lenses. It would allow them to roll out firmware updates more quickly and easily.

I know Tamron's latest prime lenses will be compatible with the TAP-In Console however, they really should find a way to allow the 15-30 VC, 24-70 VC, and the latest 70-200 VC to utilize it. Let's check and see if they ever will.

I doubt it. Just like older Sigma' don't work with the dock. I think they've got to account for that in the design - though I could be wrong. I'd love to see those three lenses included, of course, since I own them all.

So, the TAP-in Console was released a couple of weeks back and I finaly got one! Dustin, what do you think of using the TAP-in as a rear lens cap for convenience? Were there any issues with doing the same for the Sigma Dock?

What country are you in? The reason I ask is that I haven't even gotten one yet, and both Tamron Canada and Tamron USA are eager to put one in my hands ASAP.

I'm struggling to see the logic of using it as a rear cap, though, particular when the current Tamron rear cap is the nicest one out there.

Yeah, I was wondering if it could double as a rear lens cap purly for the convenience of having one in your bag however, Tamron said the TAP-in has not been tested to do that so that's a BIG NO no for me.

I live in the US in Texas and I bought mine from B&H for $59.00 here: http://www.bhphotovideo.com/bnh/controller/home?O=&sku=1233544&gclid=CjwKEAjw-r27BRCzsNyzrMrM-j0SJACp2TiBA5zF4ilj8zSa82dp7jP7OwKP3hJIWkhxGLQqt7IkIhoCl9vw_wcB&is=REG&ap=y&m=Y&c3api=1876%2C92051678762%2C&Q=&A=details

I did a random google search one day and was surprised B&H and Adorama had them in stock for almost a week! A very quiet release huh?

Interesting. B&H and Adorama must have gotten priority on them. I'll have to reach out to my contacts and make sure someone gets me one.
Upvote 0

Tamron 45mm compared to Canon 50mm STM

DJL329 said:
TeT said:
Don Haines said:
WOW!

A $900 lens that is better than a $170 lens......

INCONCEIVEABLE!

He did ask... and yes exactly what you would expect from a $600 lens v. a $125 lens...

He keeps using that word. I do not think it means what he thinks it means...

::)

"I don't think it memes what you think it memes."
Upvote 0

Filter

Forum statistics

Threads
37,480
Messages
975,426
Members
24,816
Latest member
GLBDD

Gallery statistics

Categories
1
Albums
29
Uploaded media
372
Embedded media
1
Comments
25
Disk usage
1 GB