EOS M50 and EF-M 18-150mm Lens - Horrible Quality and Extremely Small AF Points

[OPRailfan]

I recently just picked up the Canon M50 (body only) and the EF-M 18*150 mm lens. But every time I take a photo, the quality is horrible and whenever I focus the camera the focus areas are extremely small on any AF setting. Typically, I prefer that most, if not all of be focal length is in focus. Any way on how to fix this?

[deebatman316 · Accepted solution]

Were these pictures taken in JPEG or RAW. I recommend using RAW and Canon's DPP Photo editor. If JPEG what quality is it set to Small, Medium or Large. The pictures are too small to see what's in focus or not. I noticed that you were using F/4.5 with the M50. But with your old DSLR you were using F/22. F/22 would have more in focus than F/4.5 would.

[rs-eos]

Not sure what you mean by "prefer that most, if not all of be focal length is in focus".   Can you post an example image and point out what the specific issues are?

[OPRailfan]

 Top is one I’ve taken with the M50 with said lens, bottom is one I’ve taken with my DSLR 

[deebatman316 · Accepted solution]

Were these pictures taken in JPEG or RAW. I recommend using RAW and Canon's DPP Photo editor. If JPEG what quality is it set to Small, Medium or Large. The pictures are too small to see what's in focus or not. I noticed that you were using F/4.5 with the M50. But with your old DSLR you were using F/22. F/22 would have more in focus than F/4.5 would.

[OPRailfan]

I always shoot RAW

[Waddizzle · Accepted solution]

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@OPRailfan wrote:

I always shoot RAW

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I disagree with Demetrius.  The distant objects could have been in sharper focus because they were well beyond the hyperfocal distance.  Everything beyond 15 feet should have been in sharp focus at f/4.5.

I hate to say it, but the problem is the lens itself.  Super zooms tend to be soft.

[deebatman316]

I was just noting the apertures used between both pictures. But lens filters could be to blame or even a lens problem.

[Waddizzle]

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@OPRailfan wrote:

I always shoot RAW

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Do you have any filters installed on the lens?  The Canon Dual Pixel AF sensors, which I believe the M50 may have, underperform when paired with a UV or CPL filter.  Some of the high end L glass underperform when paired with a UV or CPL filter.

FYI, a UV filter is all but obsolete when it comes to digital cameras.  Nearly every digital image sensor assembly includes a UV filter layer.  Adding a UV filter to a lens on a digital camera is not only redundant, but it does not play well with some of the lens coatings used on internal elements of “digital” lenses.  One very good example of this is the EF 100-400mm f/4.5-5.6 IS II USM.

Also, a CPL filter can compromise the performance of a Phase Detect AF system because a CPL filter removes phase information from the light.  I rarely us one, but when I do it is on a tripod.  I focus without the filter before I take the shot.

[OPRailfan]

Nope, no filters

[Waddizzle]

Is this your first experience with a camera that uses interchangeable lenses?