All 1.6x is good for is hiding shit quality in a lens or gaining mm on a tele.

Little sensors make me cringe.

This post was edited by lithfkn on Nov 10 2010 10:58pm

But the 7D is the camera that really showed the limits in the 70-200/2.8 mk1's resolving power. :/

I'll do some 5dI and 5dII vs 7d tests in real-time situations on Jan. I may end up returning the 7d

This post was edited by onepagememory on Nov 10 2010 11:43pm

How? It's a crop sensor. Everything is sharper on a crop sensor.

The 7d might have superior focusing under poor conditions but you can't compare true 35mm format.

This post was edited by lithfkn on Nov 11 2010 12:03am

Makes sense.

The high megapixel count on the aps-c sensor from the 7D makes it have a dense pixel density of 5.4MP/cm2 which equates to pixel size of roughly 4.3µ, with those specs in mind, the 7d is able to resolve 116 lp/mm on a smaller image circle, which exceeds what the 70-200/2.8 mk1 is capable of.

Now to put things in perspective, the 5d mkii has a pixel density of 2.4MP/cm2 and pixel size of 6.4µ with resolving power of 70 lp/mm. Even though the 7D's image circle resides in the "sharper" part of the lens, it stresses it alot more then a full frame would.

I don't mean to mislead anyone but i just want to clarify that just b/c the sensor in the 7D has a higher resolving powr, it doesn't mean that prints are sharper etc.. it just doesn't hide shit quality from a lens, it's actually more demanding on it

what comes to resolving power of 7d etc, it doesent make a big difference and you simply cant get the shots with a crop sensor that you can get with full frame

here is a sample pic of what crop sensor cant do

http://www.have-camera-will-travel.com/field_reports/full_frame_vs_crop_sensor_-.html

what this brings to portrait photography is that you can use wider field of view and still remain background blur. you cant get bokeh with wide lens when you want the whole person in the shot, because if you want the same fov you need to use wider lens on crop sensor and wider lens reduces the background blur, when you go full frame vs 1.6 crop, it has really big effect and 1.6 crop pretty much ruins it totally. when shooting some head + shoulder portraits, you can get the background blurred and still get the person in focus better because of the dof seem to change to bokeh faster(due to having to focus closer) because you need to use longer lens. if you just use lower f-number and move further away on a crop sensor to get the background equally blurred, the person starts to have bokeh on him because dof changes to bokeh on wider area(it takes longer distance for the sharp parts to go to total bokeh)

here are few examples:

if you want this wide with crop, the background wouldnt be as blurred
http://www.flickr.com/photos/kevin32832/5154076706/in/pool-canon5d


if you would want the same background blur than this shot with crop sensor, you couldnt get the models face and that hairy thing around her in focus like that, instead the bokeh would start building on her face, slowly graduating to the same background blur making sharp parts on the edge of focused areas blurred. or if you want the same amount of sharp are on her face, whats still blurred on this shot, would be only half blurred with crop and the background wouldnt be as blurred
http://www.flickr.com/photos/bure/5164099581/in/pool-canon5d

this is shot with 50mm and f-1.4, you simply cant get background as blurred with crop sensor when the frame shows this much of the subject, if you move further away, the background wont get as blurred
http://www.flickr.com/photos/lorirask/5165186720/in/pool-canon5d

this is shot with 20mm 3.5(about same fov than with 12mm on crop), you simply cant get background blur with a 12mm lens on crop sensor(exif says 50mm f/2 because its a manual lens)
http://www.flickr.com/photos/santapolero/5164317821/in/pool-canon5d

i bet you get the idea. these things are something where a crop sensor simply cant match the full frame and if you want good portraits, you need a full frame(or at least 1.3 crop). 5d has pretty good iso handling even compared to new crop sensor cameras, not to mention that the viewfinder is much larger. anything that new crop cameras can offer doesent compare to what a full frame can do if you want to take good portraits

interesting discussion guys. For me it´s also a matter of price. I feel like paying for a shitload of extra features on the 7D, which I dont even need. and hd video is only the tip of the iceberg.

Antichrist is right about portraits, plus the AF system won't matter if you're shooting in a studio.

The 7D is much more versatile than the 5d however, so it depends on how you're going to use it.