Steen Bay

Don't think it's focus shift, because on 5D2 the sharpness increases when stopping down from f/2.8 to f/4 at 70mm.

f/4 on E-M5 will give you the same DoF as app. f/5.3 on NEX-7.

"The results are great and that's throughout the focal length range and at all relevant aperture settings" http://www.photozone.de/canon-eos/831-canon_1855_3556stmis

A99 + battery grip - $3360 (18978 DKK) - kamerashop.dk

Got mine today ;-) Had to pay a bit more here in Denmark (£435/$665).

OK, on a Nikon DX camera the lens has app. the same light-gathering capability as a 27-53mm, f/2.7 lens on FF, and on Canon APS-C it's (FoV, noise and DoF/diffraction) equivalent to app. 29-56mm,...

Haven't noticed anything about a SteadyShot scale in the A58 handbook.. but the point could be that it tells you how much you're shaking (which could be helpful).

Not quite sure (don't have a SLT camera yet), but think it's correct, and don't think that IBIS works when shooting video either (think that 'Steady shot' is digital/electronic when shooting video).

Should work, but not if using lock-on AF (A58 handbook p. 110).

They also shoot from different distances depending on the FL when testing lenses on FF. Is that unfair? What else should they do? The 300/2.8L II doesn't seem to suffer much from the greater...

Well, you'll have to look at the finer lines where the difference will be rather clear (see for example around '24', which represents 2400 LPH).

Like I said, then I think that DPR uses the EF 85/1.8 on Canon FF and the 50/1.4 on Canon APS-C. The studio scene has changed since the 5D review, but think that the same resolution test chart was...

From DPR's 5D and 7D reviews - horisontal/vertical resolution (extinction resolution) : 5D - 2300/2000 (2500/2500) LPH 7D - 2500/2450 (3100/3050) LPH That's the problem here.. according to DxO's...

Wondering, how does for example your 70-200/4L IS perform on the Q, compared to e.g. the kit lens (if you have it) that's designed for the smaller format (if the framing of the subject is the same)?

Well, we're usually not looking at 24x36mm prints from a FF camera. If e.g. viewing at 100% on our monitor, then the image is magnified quite a bit.

Not 100% sure, but think that DPR uses EF 85/1.8 on Canon FF and EF 50/1.4 on Canon APS-C. Agree that the 5D has better sharpness/contrast/acutance, but the 7D's higher MP count will most often...

A bit of sharpening makes it easier to see. It's clearly visible if comparing the resolution test chart shots in DPR's 5D and 7D reviews.

Yes, thanks to KLO82 for that. We can also see that the 7D actually has a higher resolution. The 5D's MTF curve stops at app. 61 lp/mm because it runs out of vertical pixels (app. 61 lp/mm...

Took a look at the E-M5 vs. the 5.6x crop SX50 set at 3 stops lower ISO. SNR 18% and DR. EM-5 at measured ISO 3200 - 24 dB - 8.5 Ev SX50 at measured ISO 400 - 26.5 dB - 9.5 Ev Seems that the SX50...

The G5 sensor is app. 8x larger, which can be translated to app. 3 stops better high ISO performance (assuming equally efficient sensors), so the f/2.8 lens on FZ200 isn't fast enough to make up...