EOS RP photo aren't as sharp the ones from my EOS M50

[kingsahibkhan]

Hey i realized that a lot of my RP photos arent as sharp as my M50 at further distances and a lot of times my RP photos are blurry and i never experienced the same with my M50. 

https://drive.google.com/drive/folders/1ggc239v1EpPc3rZ9zn2lJ78--hZNbHOf?usp=sharing

The picture at the pier was with RF lenses and as you can see it cannot focus well at all. The other pictures are with a EF 50mm. The clarity of the walking person in with the m50 is just far higher than the people in the RP photo. Please take a look and see if you agree. (zooming in makes the biggest difference.)

[deebatman316]

The problem here is that Full Frame cameras have shallower depth of field than their APS-C counterparts. Shooting at very wide open apertures on Full Frame will show this more. Shooting at F/2 for instance on APS-C camera will have more things in focus than shooting at F/2 on a Full Frame camera. Also the image sensor in an APS-C camera causes a 1.6x focal length increase. The lens will always be a 50mm lens but the angle of view changes depending on the sensor size. Note both of these pictures below were both taken with the EF 50mm F/1.8 STM lens. But one picture was taken on an APS-C camera the other was take with a Full Frame camera. The picture on the top was taken with the EOS 40D an APS-C camera. The picture on the bottom was taken with the EOS 5D Mark IV a Full Frame camera. Both pictures were taken at an aperture of F/1.8. Notice the picture on the bottom has more bokeh (background) then the one at the top.

Gear: EOS 40D (Crop sensor), EF 50mm F/1.8 STM Settings: Tv 1/1000th sec, AV F/1.8, ISO 100

Gear: EOS 5D Mark IV (Full Frame), EF 50mm F/1.8 STM Settings: Tv 1/320th sec, AV F/1.8, ISO 100

[Tronhard]

To expand on my last comment.   While the R50 with a short FL lens is very light and may tolerate being used by looking at the LCD, the RP is much heavier and the potential for camera shake is magnified by the focal length.  For that reason, conventional wisdom encourages you to use the electronic viewfinder instead of the LCD for composing and shooting.  That is because you get three points of support: the two elbows tucked tight to the sides of the torso, and the camera pressed against the face - thus forming a sort of tripod.   See this example of how to use a larger camera:
The correct techniques

[deebatman316]

The OP has the EOS M50 not the EOS R50. So that camera is much smaller than the RP.

[Tronhard]

Absolutely Demetrius - it is both smaller and lighter, and the lens configurations are lighter too. 

To give you an idea of how important technique is, I will give the example of this image, taken with the Sigma 150-600c lens, hand-held, using the Canon EOS 5DIV, also a 30MP camera and with no IBIS.
This is the original image:
EOS 5DIV, Sigma 150-600@520mm, f/8, 1/1000sec, ISO-200  The same image, cropped

Using the EOS M5, essentially the same as your M50 but configured more for stills also hand-held, and using a slow shutter speed
EOS M5, EF-M 18-150@59mm, f/6.3, 1/40sec, ISO-200

[deebatman316]

Yes technique is very important and it will lead to very sharp pictures. Improper settings and techniques will lead to out of focus pictures.

[Tronhard]

The OP has the EOS M50 not the EOS R50. So that camera is much smaller than the RP.

Exactly my point, there is a lot more weight and leverage with a FF camera and a zoom on a telephoto setting compared to a fixed, light lens with short FL on a small, light body.  The M50 was really designed for vloggers, so it lends itself to being used via the LCD as well as EVF.

[deebatman316]

The EOS M Series was really designed for content creators. So the lenses were small and compact to begin with. Generally you'll see more camera shake with telephoto lenses or a lens set to a telephoto setting such as 85mm. Most lenses in the telephoto range have IS to counteract camera shake. With newer cameras with IBIS will stabilize all lenses now. Instead of just relying on Optical Stabilization alone. Not all lenses have Optical Stabilization due to very wide open apertures such as F/1.2 or F/2. 

[kingsahibkhan]

I tried all of these with minimal shake and even on hard surfaces with a timer, 1 in 5 was actually sharp. 

[stevet1]

I have been mulling this over and have not come to a conclusion.

One argument says that there is more of a tendency for camera shake with heavier cameras and lenses because your arms get tired and it's harder to hold your equipment still.

A counter argument says that there is more of a tendency for camera shake in lighter cameras and lenses because, due to its lighter weight, when you push the shutter button down down, it's easier to move the camera, and as  Demetrius says, there is probably no IS in those short lenses at wide open apertures.

I've just been musing.

Steve Thomas

[Tronhard]

I think both arguments have in common is that the issue is technique in holding the camera with extended arms creating a far greater risk of camera movement.