privatebydesign said:

And what about lenses with rear gel holders like the 17-40, 16-35 MkI and MkII etc? Marks on the rear element are much more image impact inducing than marks on the front element.

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I'm not speaking about image degradation caused by marks or debris on internal surfaces. I'm talking about the loss of imaging resolution due to the fact that an optically flat piece of glass will alter the path of a light ray due to refraction at two air-glass interfaces that are separated by a non-negligible thickness. If a lens is designed to take this into account--as all lenses that are made with a drop-in filter slot are so designed--then the removal or modification of that piece of glass can have consequences on image quality. The impact on the central portion of the image is minimal, but for oblique rays hitting the periphery of the image circle, especially when the lens is shot wide open, the impact is more evident.

Any piece of glass of nontrivial thickness that you put between the lens and the sensor will cause some kind of refraction that is proportional to the thickness of that glass. A gel filter is about one order of magnitude thinner than a glass filter, and thus the refractive error is also similarly smaller.

brad-man said:

jrista said:

brad-man said:

Marsu42 said:

Don Haines said:

.... but the reality is that there is very little of the picture where this extended range would have made a difference and in the end, you probably could not notice the difference.

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Here's an example of this from today, the sky was clipped, but after some brushing around in LR it doesn't matter since it was all grey anyway (well, bluish grey). I call the shot "Thinking of DR discussions" :->

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He may have been saying "goodbye Jon". It appears that jrista has left the building...

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Nope, not gone. Just extracting myself entirely from the debate...all debates. I honestly don't know what I'm debating for, it's done nothing for me, the response from this community has clearly indicated they don't want me involved. So, I'm not. I've got better things to do. (BTW, the only way to stop getting notified in the new replies list of your activity in threads is to delete yourself entirely from those threads (in case anyone was curious)...therefor, this post will be deleted at the end of the day.)

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I hope you reconsider removing yourself from all debates/discussions. You are one of the more knowledgeable and helpful participants on this forum and have much to offer. Just give the sensor argument a rest...at least until the 5DlV is released

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Don't worry, he is as prolific as ever.

http://www.canonrumors.com/forum/index.php?action=profile;area=showposts;u=20664

And I agree, the place would be poorer without him.

Steve said:

These samples still don't seem very sharp to me. Even the low ISO shots seem a bit smeary. I gotta think its something to do with how the camera processes the jpgs. The NR looks good but everything seems just a touch OOF even when its obviously not.

dtaylor said:

ACR is able to extract more fine detail then DPP. When I've tested this I've actually been surprised at how much more. Conversely, I think its algorithm ends up emphasizing noise.

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I've never noticed a difference between DPP and ACR wrt detail but the noise difference is pretty obvious. When I switched to using DPP to convert, I could definitely use less NR and more detail extraction, sharpening, contrast, etc without going over the edge into that weird watercolor world. Photos I converted from DPP and processed in PS were definitely sharper and more detailed than ACR conversions processed similarly.

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Thanks for the observations. I'll need to look into processing this way.

I have the Canon 10-18, 35 2.0 IS and Sigma 50mm Art. I'd give up some of the UW area, but would it be wrong to consider swapping out my UWA zoom and 35mm for a 16-35 f4 IS? I'll be sticking with crop for awhile, but maybe not forever.
I like all three, but I also like simplicity and the Sigma 50 is a cut above.

lucuias said:

Canon 70D is the only touch screen DSLR from canon,if it is not touch screen,it is not Canon 70D.Maybe some China 70D

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The 100D/SL1 also has a touch screen but it's not articulated like the 70D

alistairm1 said:

There's a bricks and mortar store where the 7DII is £1599 and the 15-85 is £590 and an internet store has the 5DIII with 24-105L as a kit is £2149
I can afford one or the other, and for reasons of marital harmony I need a one-body solution.

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One thing to look out for, I'd assume that at that price for the 5d/24-105, it's a grey import. If you're happy going that route I reckon you'd be able to better the price for the 7D/15-85 online too, for example DigitalRev have the 15-85 for £419. no price for the 7D MKII yet.

barracuda said:

Hate to throw you another curve ball, but a refurbished version of an older version of the Sigma 120-300mm f/2.8 EX DG OS APO HSM (Mfr# 136101 vs. the newer 137101) is available at Sigma's outlet store for $1999.

https://www.sigmaphoto.com/product/120-300mm-f28-ex-dg-os-apo-hsm-refurbished

I'm not familiar with the differences between the two lenses, so can't say how IQ compares.

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This deal appears to be over now? I am currently looking to purchase the older version of the sigma 120-300, but it appears the sigma outlet store no longer sells it.

Thanks Graham for the review!

I dont own the 6D and I am not sure that I will, but your review added a bit more of doubt when thinking about the next camera. So far, I am happy and my needs are fulfilled almost 100% of the times with a 5D mark II. Maybe in 6m.- 1 y. may be time to change. Or maybe not... I was 7 years with a 10D.. However, when my hands were on the 5D II I thought why didn't I change before... I think Either it will be 5D III or 6D + 7D mark II. I "unfortunately" am developing my skills in wildlife and is a field I really love and plan to shoot in the coming years.... so the 7D II seems a great camera for that too...

Anyway now I am redesigning my lens collection (selling my 24 1.4 II and 24-70 2.8 vI and buying the zoom vII) and possibly my cokin GND filters (to Lee). Did you start with the Cokin? Did you find any differences?

And really beautiful pictures you shot! I also shoot quite a lot of landscapes at f16 and above and was wondering about if there is someone else using these aperture! I have heard about the loss of sharpness at these high number apertures because of the diffraction. Any experiences on that? Any noticeable loss of quality? I know about it but really need those apertures many times for the purposes I want (as you, long exposures for example).

Anyway, keep on the good shots and thanks again for the review!

Victor

Ebrahim Saadawi said:

Khnnielsen said:

Ebrahim Saadawi said:

Well it's broadcast-approved because it is 4:2:2, and over 50mbps. The 1Dc has SO much more than the 7D mk II, it has a full frame 5D3-like mode, a 4K APS-H mode, a S35 mode that looks better than the C300(!), a Clean HDMI output in 4K mode that's even beter than the s35 crop, it has Canon Log, doesn't have the EU tax limitation of 29 minutes, and of course it has a 1DX built-in!

I just wish Canon would bring some of these down to lower-end models. Why not give the DSLRs C-log? Why doesn't the 7D mk II have a image similar to the s35 crop in the 1DC? Sony is giving S-log and F5/55 quality in their DSLRs, Canon should do the same with C-log and C300-quality. It doesn't hurt sales, current F5/55 owner are just buying A7s's as B-cams, it boosts sales!

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You are preaching to the choir.

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How? I am asserting that the 1DC has much more than other Canon DSLRs as a response to people who said it's just 4K resolution.

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Relax, I wasn't attacking the first part of your post. It was just a response to the last part of your post, where you are talking about how you wish, Canon would bring some its more advanced features to some of the lower-end models. I am fairly certain that many feel that way - both on the video and still side of things.

I just recently ordered the 400/5.6L and I would like to know if anyone here has used this lens in combo with 5D3 and how it works.

Thanks in advance

Sella174 said:

Pleasantly surprised to see FUJIFILM in third place with 11.4% - especially since they are exclusively in the mirrorless segment.

Anyway, this situation (of falling camera sales) is quite obvious and inevitable, as camera-type cameras are pushed out by camera-enabled devices. The reason is quite simple and two-fold: for most people a camera-enabled devices produces sufficient image quality that is mostly on par with nearly all P&S and entry-level DSLR's with kit lens; and the camera-enabled device nearly always offers functionality and ease of use that is not provided by basically all DSLR cameras still on the market.

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Fujifilm also have point and shoot line and they sell a lot of instant Camera.

alexanderferdinand said:

Using 1d4 and 5d3 its simple: I prefer the CF cards due to the slow SD interface
In my Sony or Fuji the SD shine with speed.....

7d2 supports finally the UHS protocol- wow. Canon, the late adopter.

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The 6D supported UHS-I (2009), too. Too bad Canon still hasn't adopted UHS-II (mid-2011). :/

I doubt anyone owns one as they're only available for pre order at the moment.

There are some sample images out there: http://sigma-rumors.com/2014/10/wide-open-samples-sigma-150-600mm-sports/

Came across this site, has some interesting 7D Mark ll articles.

http://www.canon-asia.com/snapshot/

I've suspected that there were multiple configurations being tested as well. The "1DX top plate, 24MP and 12FPS" rumours were quite consistent for a very long time, and CR seemed to be getting those stats from sources they considered quite reliable. Moreover, for a long time the rumours stated that the camera would NOT be called 7D Mark II, which would fit if the product diverged so significantly in form from the original 7D. I suspect that two (or more) vastly different groups of prototypes were in the field, testing different types of technology and format.

As to the reason the existing form was chosen for production, there could be a host of reasons. It might be technical. It's possible the noise performance of the modified 20.2 MP sensor was better than the tested 24 MP. It's possible that a 12 FPS body didn't give the desired 200,000 shutter life, or it may have failed on other technical grounds. It's also possible that the 1 series design ethic didn't fit the expectations of the target market--enough people on here complained about the concept that similar complaints from focus groups may have resulted in Canon deciding to go with a more "5D" look and feel prototype.

It's also possible that the decision to go with the model chosen had something to do with target pricing. Many of the rumours associated with a "1DX" design ethic, 12 fps and a 24MP design also speculated on a $2000-$2500 retail price. That had a lot of people balking here in the forums, and also possibly in Canon's focus groups and market analysis. As a result, the winning design in the competition was one that could meet the requirements of the target market, yet still achieve a desirable sub two thousand dollar MRSP.

Pure speculation of course, but I think it makes a certain degree of sense. Not a conspiracy at all--just a pragmatic decision on what can be delivered for a given price point to the intended target market, without making that market too narrow to ensure success.

I don't concur though that the 7D II we are getting is in any way "obsolete" at all! I think it's going to be a phenomenal and well thought out wildlife/action/sports camera for the shooter who cannot afford a 1DX!


I also think the notion that they didn't go with a 24MP sensor to protect the 5D III is demonstrably fallacious. At the time the 7D introduced the 18MP crop frame sensor, the top of the line 1D III only had a 10MP sensor. And the 1DIV that followed in 2010 only had a 16MP sensor!

I finally watched this video last night. I don't get the hate or the criticism, honestly. This was not a review. If you think it was you are probably the type to have bought the next iPhone because Steve Jobs proclaimed it to be "magical, innovative, Apple". It was an informative hands-on account that turns out to be decent marketing material. We won't see full reviews until after the camera has been released. For those who want/need the upgrades in the 7D2 a review probably won't change things, most have already pre-ordered. If you expected huge differences in DR and usable .jpgs at 16k ISO, then by all means continue to lament the lack of technical details, or just wait for a review. Then your complaints have merit.

IsaacImage said:

switters said:

thestructured said:

Again, as I've stated previously, along with the others having this problem, it cannot be user calibrated because it's only off center points having the issue and any calibration gets applied to all focus points, throwing the center point(s) out. Neither in camera AFMA nor the sigma dock can fix this issue, and sigma service has stated that they cannot fix it either until the sigma corporation finishes writing the software necessary to do it with (note: they said it's software to be used at the service centers, so it will still not be a user serviceable issue). At least it sounds like they are working towards making it fixable, god knows how long that will take.

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Interesting. I just came to the forum to post exactly the same issue with the 35A I have. My first two copies were so far off that I had to return them; I used both FoCal and the dock to calibrate them, but they couldn't even focus properly with center point and a focus target with camera mounted on a tripod.

My third copy is much better. I was able to use the dock along with FoCal to get it consistent using center-point focus, though it did need large adjustments (something like +9, +5, +4, +3 IIRC).

However, when using outer focus points, it's ridiculously off. It will focus on an object a foot in front of what I'm actually focusing on—it's not even close. For example, I took some shots of my daughter sitting on the couch holding a friend's newborn on her lap. Even though I was focusing on my daughter's eyes (with a cross-focus point a little left and above center), the lens decided to focus on the baby's face... which was a good 8-10" in front of my daughter's eyes, and at least 12-16" below.

Like everyone else, I am blown away by the sharpness and clarity of the 35A when it hits. But being forced to use the center focus point in order to get those results is a dealbreaker. 90% of the pictures I take are of people that are moving. Focus and recompose is not an option.

So I am selling my 35A and buying a 35 IS. And as excited as I was about the 50A, I'm going to pass on that as well. Still hoping Canon will come out with a 50 IS or revamped 50/1.4. In the meantime, may just skip up to the 85/1.8 and have a 35/85 combo with two small, compact lenses. This appeals to me because my main workhorses are the 24-70 II and the 70–200 IS.

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My 35 A actually perfect
Even guys at Sigma service were surprised

Anyone have a success with latest batch of 50A ?

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I can't speak of the latest batch of the 50A but I bought mine on April 7 this year. It is my first copy. It is working outstanding on both my 6D and 5D MKIII. Straight from the box - although I checked it with AFMA. It is sharp and doesn't miss focus.
I used to own the regular sigma 50 f/1.4 and used it on my 7D. Also worked great without AF problems. Didn't like it on my FF cameras so I sold it.

This could be an option.

http://www.sandisk.com/products/wireless/media-drive/

great shots! thanks for sharing.

EchoLocation said:

Neuro, is this really you on the sonyalpharumors comments section?
"Neuraoanatomist • 12 hours ago
canon video has nothing to do with the panic attack video you idiots.. you retarded bloggers have no clue at all.
nowhere canon says it has anything to do with the panik attack video."

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Lol, no. Some pathetic individual who was banned from CR, I suspect.

jrista said:

LetTheRightLensIn said:

StudentOfLight said:

My guesses:
An expensive "EOS 1D-C Mark-II"
Stills: 46MP, 8fps
6.4K Video (in 1.3x crop mode)

A premium priced "EOS 4"
Stills: 44.7MP, 6fps
4K Video: (full frame capture)

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That would ultra sweet, especially if they fix the DR. That plus the DR, those would be a heck of a pair of cams there. I'd be all over that latter one myself.

I have a feeling they won't be so exciting as what you list.

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Maybe not as exciting. A while back, maybe a year ago now, there was a rumor of a 75mp Canon "big mp" camera. I'm beginning to think now, with all the layered sensor rumors of late, that Canon is working on a 25mp RGB sensor (or maybe the 5-layer, however the UV and IR layers probably won't be included in the RAW). I think that would be interesting, assuming it resolves Canon's read noise issues, as I'd love a layered sensor with high DR.

I'm afraid that Canon isn't going to change their readout system. I suspect were still looking at 16, maybe 32 readout channels, off-die ADC units, and the external DIGIC processors. In that case, I figure the low ISO read noise issue will be unchanged. They should realize an improvement in color fidelity and overall image sharpness...but the dynamic range issue would persist. I really, REALLY hope I'm wrong...but I'm so skeptical of Canon now on the sensor technology front, I just have to see it first before I can believe it.

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On another tangent, can the (W-R, W+R) approach somehow be mated with DPAF?

Rocky Mountain National Park during the elk rut in late September under dark, overcast skies.
6D/Tamron 150-600

Re: Sigma to Release Firmware for 120-300 f/2.8 DG OS HSM Sports & New Teleconverter Compatibility

Nope, the new tc's will only work with the 120-300 Sport (after a firmware update) and the as-yet-unreleased 150-600 Sport and Contemporary. They won't work with any other make or model of lens that currently exists in the world. Its insane.

how about MANUAL?

An image from a new body of work. The processing isn't exactly what I'll be using in the finished work, but the light in this is so incredible to me that as a "one off", this processing seems to "work".

Scenes from a Walk by Christopher Mark Perez, on Flickr