It is not clear to me but do you have the tracking number and checked with that yourself?
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I did a test a while ago on my 7D, RAW vs sRAW.
I don't have time to find the original thread, gotta go to work, but the conclusion was that RAW delivers better noise and detail compared to sRAW, when scaled to the same size.
sRAW is only for saving card space, nothing else, if you want quality go RAW.
Would be great help if you could post the link to the thread you were talking about. I shoot in sRaw but was contemplating whether shooting in RAW would yield photos with slightly better output.
I stack all of my hoods together and slide them over the small end of my 20-700 f/2.8. I sized the divider section for that lens to be big enough to accommodate the hoods, so the hoods fit in snugly and also hold the lens in place. That lens fits vertically into my bag...I wouldn't use this method if I had the lay the lens down on its side.
40 vs 50? I'll be keeping both lenses for now. But if one just HAD to go it would likely be the 40... f/1.4 vs f/2.8 is just no contest.
I've never found a used one to be what i'd call excellent. Sellers often don't understand why they did not like it, but there is a reason.
The biggest issue with the 24-70mm L is lens decentering, all of the internal lens elements centered properly. You can google on how to check for this, its obvious once you know what to look for.
Then I'd use FoCal Pro to run their battery of not only AFMA, but the other tests as well.
Some things you cannot fix, like the curvature of field that means the center and edges cannot be in focus at the same time. Stopping down will hide it in depth of field, but some buy a f/2.8 lens actually expecting to use it at f/2.8.
Never bought a used lens before, and honestly, don't see myself doing so. I got a friend at Canon who gets me a nice discount on cameras and lenses... only downside is that I gotta pay cash!
On the other hand, I did once buy a used 17-40 for $400 and sold it for $600
I'm just to skeptical when it comes to buying used glass.