You can easily add a bit of gaussian blur in PS, but you can't remove it. If 50 MP is a bit overkill for your normal production, and you want to worry less about addressing moiré in post capture processing, then the S should be fine. If you may want to squeeze everything out of 50 MP and are prepared to fuss a bit more in PS, then go with the R. I'm in the latter group. Typical trade-off.
I'm also still using the 5dmkii (mkiii had nothing to offer for me), so I assume you output larger than say 17x20" at 360 dpi (Epson inkjet). How large? That will tell you whether/how much 50 MP is overkill.
Second, do you have lenses that can resolve the sensor? That is a MTF question.
Alternatively, you can stop down and induce diffraction blur that will be equivalent to the AA filter. I have seen f/6.7 and f/11 cited as point where diffraction will limit what the sensor can capture. Portraiture is usually shot very open, so you may run into moiré problems. Studio product shots may have wider f-stop/DOF requirements.

Hi Folks.
Just thought I'd let you all know (well those of you that didn't already know) that there is a great article from Roger at lens rentals, Canon 100-400 IS Mk II lens in bits all over his bench here..
http://www.lensrentals.com/blog/2015/02/canon-100-400-is-l-mk-ii-teardown-best-built-lens-ever
As ever a very well written piece. I'm not sure but I think he likes the build quality of this lens! : ;D

Cheers, Graham.

When did Sony become the Dark Side? I have always thought that was Nikon. Fickle fanboys

One more handheld snapshot!

Sporgon said:

rfdesigner said:

Sporgon said:

I tried one of these lenses a while ago. Because we lock focus with an open aperture I think it has something to do with the fact this lens is so poor mid edge frame at f/1.8 it has something to do with that. I found a similar problem on the FF cameras with the far outer points.

Click to expand...

Thanks

Can I ask if the problem you experienced was with the 9 point AF?.. i.e. 5D classic or 5DII

(if it's the 9 point then FF or crop makes no difference, it's the same AF chip and the same offset in mm of the outer AF points)

(ps, just checked your site.. some extremely beautiful images, most impressed)

Click to expand...

Thanks for that, appreciated.

Yes I tried it on a 5DII, so the AF is probably identical to yours.

As a creative lens I think it has some potential; it's just that I don't see the world in shallow dof 28 mm focal length !
I found that in the centre from about f/2.8 is was really quite good. Also very low distortion. The very extreme edges ( on FF) were also good, it was just the bit in between that caused me issues. It also had a lot of CA's but that is not necessarily an issue for everyone.

Click to expand...

Brilliant!, so it's to be expected... fine I can live with that, thanks.

I want it as a low light people lens (kids / family shots, indoors, groups etc).. in that regard it seems well suited, it's bought me 2 full stops of light over the zoom.

Distortion & CA wise I don't worry too much, I always shoot RAW and then apply lens profiles in DPP, as I'm not a pro so I'm not shooting as much nor under any time pressures.

Nice!

Thanks for sharing

Just looked at the Canon EOS 5DS with EF85mm f/1.2L II USM - 27.42mb photo - absolutely horrid

Goldingd said:

No in camera sharpening, leave that to post processing, and preferably at or near the end of post processing.

Click to expand...

+1, there's no point in betraying yourself with using sharpness in the picture style. It cannot live up to the results of good post-processing and makes checking for critical focus more difficult.

I was playing around with my M lenses, and my thoughts took me to the question "why there is so weird collapsing mechanism" on my 11-22mm. So I played with it with thoughts of greatest achievable wide angle, and I found this:

1) When focus is set to infinity, it has slightly wider angle. Cool. It´s pretty normal way some lenses work.

2) When I try to collapse the lens, It goes wider. But it doesn´t let me to shoot, because something in the lens switches, and I see prompt jumping up on me (in the camera) that I should put the lens into normal shooting position.

Well, so I slowly turned the lens to the "breakpoint" where it still doesn´t ask for shooting position, took a a shot, and found it is noticably wider. It could be even wider without problems if the locking mechanism was set more "precisely".

Here is normal shot of locked mechanism - mess on my table:



And here it is in the position right before the camera will deny to shoot and prompt me to put the lens into shooting position:



If that prompt wasn´t there, It could shoot even wider, possibly without problems.

I hope there are not some wicked internal tolerances in the lens, which could cause some optical elements colision when trying to focus without locking it, but if somebody found this is not the case, I might mod that lens, bypass that switch, and get 10 or maybe even little less.

Huh, just playing...

I have the 5Dmk3 and the 7Dmk2 I would take the 7Dmk11 100-400 Mk2 and the 1.4tc when birding I use the 7Dmk2 for all sports too. I use the 5Dmk3 for portraits, landscapes and ultra wide angles

That made my day! Thanks for finding that piece.

Doing the firmware upgrade on the a6000 reminded me of the First Principle: If there is something written in French, please control its veracity by any other means available. And again, just replace the 'ne fait pas' by 'commencer par'. Translation: Replace 'do not' by 'start with'. And then you get the firmware update. The point is, you have to patch the firmware installer to be able to install the firmware. It would be easy if they did not tell their clients the exact opposite.

The Metabones upgrade was easier. One needs a bit of agility to be able to push a button while inserting the USB contact.

Now I will probably find out that the old EF lenses are doing OK with the a 6000.
Only tested the 35mm L thus far. It sort of does autofocus but not in a useful way.
Manual focus good, picture quality excellent.

An interesting article on an new sensor: "to double the light-input surface area of each pixel"

Organic-on-silicon complementary metal–oxide–semiconductor colour image sensors
http://www.nature.com/srep/2015/150112/srep07708/pdf/srep07708.pdf

The name XC10 suggest to me that it will simply be a 4K version of the XA10 series of prosumer camcorders in a slightly enhanced consumer body. Using the C100 form factor would be too expensive and needs redesign to fit a smaller crop sensor.

Click said:

Phil L said:

Flights of white pelicans were stacked up this afternoon over at the marsh.

Click to expand...

Well done Phil.

Click to expand...

Thanks, glad you liked it.

psolberg said:

I'm glad to see wedding talk. I recall almost universal agreement as to why 36MP was worse of weddings in every respect because it was huge, not necessary, and didn't go to ISO 500K. I predicted the tunes would change as soon as canon went higher. I'm not saying you changed your view and I'm not applying this to you, but I'm amazed as to how suddenly 50MP is just right for weddings because they are canon MP . Many Photographers are so brand dishonest with their statements that it is sad to see how they flip 180 just on a logo. I was all along on board that 36 was never too much, and I'm still on board that 50 isn't too much either.

Click to expand...

Your memory is a bit selective. Before it became en vogue to bash Canon's DR performance, tons of people were complaining that 22 megapixels wasn't enough right after the 5D3 was announced. Sure, the only reason why some fanboys made such statements is because they were envious of the D800's 36 megapixels, but there were also plenty of Canon shooters claiming they needed at least 40 megapixels to update their flickr pages. As a proud Nikon shooter, I'm sure you noticed some people in the Nikon camp converting from the "low-light, high ISO" religion to the "slow FPS, high megapixel" religion during the D700 - D800 model update

However IF it is indeed the case that the 5Ds offers no DR improvements, and that its video image quality is a step back from the 5DIII, I think clearly this camera wasn't ready but was rushed out to try to beat whatever it was Sony is working on. It feels that management came and saw the D800 announcement 2 years ago, and tasked the team to ship more MP ASAP, everything else be damned. So they did (it seems).

Click to expand...

No disagreement here. Unless the 5Ds offers some improvement in IQ other than resolution, it's definitely seems like it was rushed to market. It won't be long until Sony releases its 50 megapixel sensors, at which point it won't be surprising at all if Nikon puts it an all-around superior body.

I've just realised I can't buy an M3.

I'm neither twee, or a hipster.

tuppence worth on m1 af. it's fine if you switch off continuous, use the central zone or single point.

emphasis on fine.

as somebody else, if af speed is an issue I would take my dslr instead,or use manual zone focusing.

Don Haines said:

rfdesigner said:

psolberg said:

possibly. Sony is a MUCH larger company than canon with far more technical muscle and sensor marketshare.

Click to expand...

I beg to differ.

Canon has a market cap about 50% bigger than Sony.

http://uk.reuters.com/business/quotes/overview?symbol=7751.T

http://uk.reuters.com/business/quotes/overview?symbol=6758.T

On it's own that's not the whole story, but it's a very important and valid way of comparing different corporations.

Click to expand...

Well.... GM is a larger company than both, and their sales of cameras is growing, not declining like Sony or Canon.... The size of the company has nothing to do with the size of a division.

Click to expand...

You're not wrong, yet that wasn't the statement.. the statement was a bold Sony > Canon.. no not true.

Sony Sensors > Canon Imaging maybe, I'd need to dig into the reports.

Canon is also grinding glass for the new generation of astronomical scopes, sony isn't.. we don't really need to wonder why, canon lenses are amongst the best in the business, with the ever growing performance of bodies I'd suggest that's more important than having this years highest MPixie camera, although that's nice to have.

At the moment Sony has the second best process, and best for DSLRs.

the sensor isn’t said to be for photography

Click to expand...

Yes it is dang it! And I want it NOW!

RGF said:

For a flash light I use my iPhone. Not sure if android have this function but it is very handy.

Click to expand...

I tried that (and yes, Android Lollipop finally has a built-in flashlight) but I needed an extra hand to hold the camera, turn the ballhead lever, and hold the phone

That's why I like headlamps 8)

AcutancePhotography said:

The 5D3 has a sensor that measures 35.8x23.9mm

Will the 5DS have the same physical sized sensor?

The Canon site only states that it is
"Approx. 36 mm x 24mm (35mm Full-frame)"

Click to expand...

This is just speculation on my part, but according to the B&H specs, the actual resolution is 53MP but the effective imaging area can only deliver a maximum resolution of 50.6MP. So the physical sensor could be at least a few tenths of a mm larger in each dimension, but the available imaging area is probably slightly smaller than 36mm x 24mm.

When i click on the WB button and dial it to color temperature (K). I can't figure out how to change the temperature. 70-642
If I go directly into the camera menu and select white balance, the top dial can be used to change the temperature.

I'm pretty sure it's the latter, it was the same with 35A, and I'm 100% sure it's the same with the 24 A.

Forum discussion posts on the right side of the main page is not updating since about a week or so?

Maybe because CR is in CR on vacation by now and updates will return when he is back?

Thanks for sharing, Alan.