07-18-2017 11:40 AM
Ahhh, back to beating that dead horse with such a question. But I'm so unsure on what DSLR to get! I just need some secondary opinions because maybe someone else will point something out that I'm overlooking.
Currently I have a Olympus OM-D E-M10 mark II and a film camera, the Olympus OM2n. Recently I tried using my E-M10 to photograph a sports event (thankfully I was just doing it for fun and not professionally) and it failed MISERABLY! The camera's auto focus cannot find anything fast enough and when it does.... its the background and not the player you are trying to focus on. There is no manual override on the lenses I have so I couldn't intervene and fix this myself. I was looking at lenses to get that I could focus manually with but micro four thirds (or Olympus lens mount) lenses are so expensive I came to the decision to just get a different camera.
Right now I am pretty set on the Canon EOS Rebel T7i. Is there anything I'm overlooking? Any other camera someone would recommend near that price range? The T7i looks to be a pretty amazing camera.
Thanks for any help.
07-20-2017 10:40 AM
"You bet. The battery thing, is dribble. Don't even think about it."
"You should actually use gear before making comments like this. The battery specifications also say you are mistaken.
LP-E6 = 1865 mAH , used in EOS M3, M5, M6, T7i, 77D
LP-17 = 1040 man , used EOS 70D, 80D, 6D, 5D3, 5D4, 7D2
I am going to call that an 80% difference. It is human nature to reject that which one does not understand."
Repeat. The battery thing, is dribble, which it most certainly is. Buy two batteries which everybody should do at the beginning anyway. Two don't last you long enough? Buy three ! Geeeez.
07-20-2017 10:44 AM
@ebiggs1 wrote:"You bet. The battery thing, is dribble. Don't even think about it."
"You should actually use gear before making comments like this. The battery specifications also say you are mistaken.
LP-E6 = 1865 mAH , used in EOS M3, M5, M6, T7i, 77D
LP-17 = 1040 man , used EOS 70D, 80D, 6D, 5D3, 5D4, 7D2
I am going to call that an 80% difference. It is human nature to reject that which one does not understand."
Repeat. The battery thing, is dribble, which it most certainly is. Buy two batteries which everybody should do at the beginning anyway. Two don't last you long enough? Buy three ! Geeeez.
I am not sure why the battery became such an issue... To me there are many, many other issues that are more important when reommending camera gear. I agree that having more than one battery is just common sense - apart from the issue of going flat, what if one actually fails? Like every other single point of failure having a fallback (if it is practical) is a wise measure.
08-28-2017 10:24 AM
If you want to experiment with your Olympus on sports, I've noticed as well as read that a mirrorless camera will focus using the chosen aperture and not the widest aperture that the lens is capable of. If you use the widest apperture that the lens is capable of your autofocus will work at its max because of more light being let into the camera. When using an OVF (Optical View Finder in a DSLR like the T7i) you are always using the lens at it's max apperture for the focal length chosen. See if that helps. For example I have a 18-150mm lens the max apperture at 18mm is f3.5 and at 150mm it is f6.3 so using the lens at 18mm and f3.5 you will get better autofocus then at 150mm and f6.3 because of the great differnce in light transmission. Using the lens at 18mm is not at all ideal for sports but is just to emphasize what I'm saying. If you have this lens set to 18mm and F5.0 then a mirrorless camera will use f5.0 to try to focus but a DSLR (T7i) using the OVF will use f3.5 to focus even though your actual apperture is set to f5.0. Using the DSLR in "live view" with the above scenario it will use f50 apperture to gain focus just like the mirrorless because you are using the DSLR in a mirrorless setting.
08-28-2017 04:18 PM - edited 08-28-2017 04:28 PM
@russ49 wrote:If you want to experiment with your Olympus on sports, I've noticed as well as read that a mirrorless camera will focus using the chosen aperture and not the widest aperture that the lens is capable of. If you use the widest apperture that the lens is capable of your autofocus will work at its max because of more light being let into the camera. When using an OVF (Optical View Finder in a DSLR like the T7i) you are always using the lens at it's max apperture for the focal length chosen. See if that helps. For example I have a 18-150mm lens the max apperture at 18mm is f3.5 and at 150mm it is f6.3 so using the lens at 18mm and f3.5 you will get better autofocus then at 150mm and f6.3 because of the great differnce in light transmission. Using the lens at 18mm is not at all ideal for sports but is just to emphasize what I'm saying. If you have this lens set to 18mm and F5.0 then a mirrorless camera will use f5.0 to try to focus but a DSLR (T7i) using the OVF will use f3.5 to focus even though your actual apperture is set to f5.0. Using the DSLR in "live view" with the above scenario it will use f50 apperture to gain focus just like the mirrorless because you are using the DSLR in a mirrorless setting.
That is baloney. The aperture at which a zoom lens will focus depends on the lens, not on whether the camera is mirrorless or not. And it has nothing to do with whether the camera is in "live view" mode. You are confusing mirrorless vs DSLR with whether the lens is a "constant aperture" lens or not.
And virtually all modern prime lenses will focus at maximum aperture. Again it has nothing to do with mirrorless vs DSLR.
08-28-2017 11:20 PM
I stand corrected, I had read and always kind of believed that the real reason ovf's were better in low light because they never stopped down a lens like "live view" would do. However trying my
Canon M5 variable aperture 18(3.5)-150(6.3)mm lens at it's widest aperture focal length (18mm) and at f/3.5 it focused immediately on about a -2EV target. Then I raised the aperture setting in aperture priority mode to f/22 and it also focused immediately. When raising the focal length to 70mm which gives a widest aperture of 6.3 I could not aquire focus on the same target no matter what I tried.
08-28-2017 11:53 PM - edited 08-28-2017 11:53 PM
@russ49 wrote:I stand corrected, I had read and always kind of believed that the real reason ovf's were better in low light because they never stopped down a lens like "live view" would do. However trying my
Canon M5 variable aperture 18(3.5)-150(6.3)mm lens at it's widest aperture focal length (18mm) and at f/3.5 it focused immediately on about a -2EV target. Then I raised the aperture setting in aperture priority mode to f/22 and it also focused immediately. When raising the focal length to 70mm which gives a widest aperture of 6.3 I could not aquire focus on the same target no matter what I tried.
Of course "maximum aperture" means "maximum aperture for that focal length", and many (most?) digital cameras can't reliably autofocus at f/6.3. Some can, and a few can even do it at f/8, but those tend to be expensive, professional-grade cameras.
And even in live view I don't think any cameras stop the lens down while focusing unless you hold down the "DOF preview" button. They can be made to show you the effect of stopping down, but I think they make that correction electronically, not by actually moving the aperture blades.
08-29-2017 09:25 AM
And you know I've stopped down DSLR's a few times using the viewfinder (especially film cameras which had no LCD screen like my Canon AE-1) but never thought to do it with live view in a DSLR because I held the belief that is was done automatically. Most of my DSLR lenses I have no manual control of the aperture.
08-29-2017 10:39 AM
I suspect too much reading and not enough doing. Don't get me wrong reading about photography is good but hands-on is the best teacher. You have the drive to learn and that is the most important part so keep it up.
08-29-2017 12:47 PM
@russ49 wrote:And you know I've stopped down DSLR's a few times using the viewfinder (especially film cameras which had no LCD screen like my Canon AE-1) but never thought to do it with live view in a DSLR because I held the belief that is was done automatically. Most of my DSLR lenses I have no manual control of the aperture.
But most cameras have a "depth of field preview" button. While you hold it down, it moves the aperture to the value it will have when the picture is taken, whether that value was set automatically or manually. Either way, the fact that the aperture was set via the camera, rather than by turning a ring on the lens itself, is irrelevant.
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