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Canon 5D Mk 2 - do we really need 21MP ?


SGIBBONS 11 56 1 United Kingdom
5 Mar 2009 1:29PM
Hi All,

I was looking for articals on scanning slides at the right DPI when i found this website and a part about the new 5D MKII www.kenrockwell.com/canon/5d-mk-ii.htm. Ive just bought my first digital camera which is the 5D MK 2.

Im interested to know anyones views on the part about USAGE Resolution (near the bottom of the webpage), it seems that maybe we dont need 21MP unless you are going to do rather large posters. Also according to this websites author you can get far sharper images and obviously use less space by reducing to just 11 or 12 MP.

Thanks for your comments Smile
rowarrior 12 4.4k 9 Scotland
5 Mar 2009 1:31PM
I think the general opinion of many on this site is that Mr Rockwell talks out of his posterior quite a lot... Wink
Overread 12 4.1k 19 England
5 Mar 2009 1:33PM
He has a few problems with this writing style

1) he only considers his own methods of shooting and his own subjects (as well as his own end results) and he makes no allowances for other areas - so his cover all comments sound very foolish to those in other areas of photography or those wanting a different end result to himself

2) his style of writing mostly means that you have to know the good points from the bad before you read his articles - which rather makes them pointless reading for newer photographers.
Henchard 15 2.7k 1 United Kingdom
5 Mar 2009 1:37PM
Ken Rockwell's views are often seen by many as being controversial (edit others got there first).

Some people do see 21 MP full frame as being overkill (and bringing with it a whole host of technical problems). Personally I feel the 5DII should have been about 16/18 MP with no on board video and a better autofocus system. But what do I know? I'm sure the people who have bought the 5DII will tell you the extra pixels are great (I'm just sticking with my original 5D for now).
Coleslaw 15 13.4k 28 Wales
5 Mar 2009 1:42PM
I do wish the AF system is better, but hey, it is better than 5D and the same if not better than 40D. If Johnwannop could catch his springer jumping mid air with 5D2, then I have no questions regarding the ability of the AF system.
The extra pixels is great as well.
I have no complaints.... at the moment.
Overread 12 4.1k 19 England
5 Mar 2009 1:48PM
Better AF would have been nice along with better weather sealing (its got some but full weather sealing would have been great)!
Myself I like the video aspect - it saves me having to either get a whole video camera system (and lug it about as well) or some complext live view recording program and run it through a laptop (face it all its doing is recording the liveview output - so just super fast shutter speed Wink)

My only complaint is everyone (but me) seems to be getting one!* Sad

*some people are going for those nikon things as well - but I can't work out why Wink
strawman 16 22.1k 16 United Kingdom
5 Mar 2009 1:54PM
Every now and then Uncle Ken buries some useful info in his stuff. There is a logic that says for up to A3 prints with no cropping all you need is 12mp, you get little for the extra MP.

Cole I think the 40D has cross sensors on all Af points while the 5D MKII has only the centre point as a cross one, but you get focus adjust and helper AF points for the 5D MKII. So it depends is the answer.
Coleslaw 15 13.4k 28 Wales
5 Mar 2009 1:57PM
I noticed that, John...Smile No doubt, the AF system could be better, but it isn't that bad really.
ljesmith 16 1.1k United Kingdom
5 Mar 2009 1:59PM
If your wanting to get it printed professionally then you need 21mp to get an A3 print at 300 DPI in 8 bit, this is the industry standard for printing. Going to large scale posters you can actually get away with less megapixels due to the printing style and veiwing distance.
Henchard 15 2.7k 1 United Kingdom
5 Mar 2009 2:00PM

Quote:Myself I like the video aspect - it saves me having to either get a whole video camera system


but as I understand it (and I have no knowledge); it is capable of very good results but takes some pretty specialist knowledge to make the best of it from manual focussing through to post processing.

Perhaps Andytvcams could let us know how useful the 5dii really is for video in the real world. I know one or two here have used it to produce videos but I'd like to know what proportion of 5dII owners regularly shoot video with it.
Coleslaw 15 13.4k 28 Wales
5 Mar 2009 2:03PM
I haven't really touched that function, except testing it.
ljesmith 16 1.1k United Kingdom
5 Mar 2009 2:05PM
Actually you'll find that some of the crowd shots of Slumdog Millionair were shot with a 5D Mk II at twelve frames per second to get a stocatto feel to the shots.
Overread 12 4.1k 19 England
5 Mar 2009 2:07PM
I know that the design of the camera (erganomic) means that video use really needs to be done from a tripod mount - handheld its much harder to hold it still for the duration of a video.
However I have seen quite a few of the videos (usually of birds) done by "pro" photographers and it seems to give a good result without one having to have a massive understanding of video methods - of course if one does then you can get a lot more out of it.
Henchard 15 2.7k 1 United Kingdom
5 Mar 2009 2:30PM

Quote:Actually you'll find that some of the crowd shots of Slumdog Millionair were shot with a 5D Mk II at twelve frames per second to get a stocatto feel to the shots.


According to the Danny Boyle interview here it was a still camera

and according to the IMDB technical page it was a 1D markIII which is 10MP

Presumably the 5DII (even in pre production) wasn't even out when shooting took place.
Kris_Dutson 18 8.2k 1 England
5 Mar 2009 2:34PM
I'm sticking with my MK1 too for the time being - I'm not paying two grand plus for an extra few megapixels as that is the only bit of the spec I wouldn't mind having - but will probably replace my ageing 20D with a 40D for back up and crop factor magnification for my longer lenses. Smile

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