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The suitability of live-view and mirrorless camera options for use with long telephoto lenses comes down to ergonomics, practice, and context. The biggest factor is likely how you're viewing, sighting, and stabilizing the camera, vs what you are photographing. Viewing a non-tilting rear mount screen is probably the worst option in nearly any context. You ...


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As the other answers have hinted at, this isn't so much about the difference between an electronic viewfinder and an optical viewfinder as it is about the different ergonomics of using an eye level viewfinder held in a constant position relative to your face and eyes versus a screen on the back of a camera held a foot or so in front of your face. When you ...


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[I know we're straying into the world of video here, but I feel it's still relevant] Why is live view harder than "TTL"? because you are not using the senses you were born with - that your eye & hands are easily co-ordinated to match direction, distance, speed & focus [of attention, not sharpness of image]. Catch a ball. No maths required, you just ...


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The aperture is not affected by crop factor, so the aperture of the 800 mm lens with 2× teleconverter is just ƒ/11. So the image would be darker than the lens without the teleconverter by 2 stops. You would not have an aperture of ƒ/90. If you took an image of a particular subject with a full frame camera on the EF 800 + teleconverter combo, and then used ...


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The difficulty of pointing is a combination of both the different body position when looking at a screen and the inherent latency in a LCD display. One option would be to mount an external viewfinder to the hot shoe on the camera. There are many models available, search for "external optical viewfinder" or "hot shoe viewfinder". Such a viewfinder will not ...


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