girishmenon Posted October 30, 2019 Share Posted October 30, 2019 Hi, How much different is the old Canon 600mm F/4 non-IS lens compared to the IS I and IS II versions (I know that it's a bit heavier, but how's it optically?) Also, if most of my bird photograpby is done on a boat on a lake where the boat does drift a little in the wind, is IS recommended? Link to comment Share on other sites More sharing options...
Gary Naka Posted October 30, 2019 Share Posted October 30, 2019 Hi, Also, if most of my bird photograpby is done on a boat on a lake where the boat does drift a little in the wind, is IS recommended? YES At that magnification, IS WILL help. Link to comment Share on other sites More sharing options...
girishmenon Posted October 30, 2019 Author Share Posted October 30, 2019 YES At that magnification, IS WILL help. I forgot to mention that I will always be using it on a tripod. So with the slight movement of the boat, IS will help, right? Even though it's on a tripod... Link to comment Share on other sites More sharing options...
Robin Smith Posted October 30, 2019 Share Posted October 30, 2019 Yes Robin Smith Link to comment Share on other sites More sharing options...
JDMvW Posted October 30, 2019 Share Posted October 30, 2019 I'm not sure what good a tripod will do in these circumstances. Maybe a monopod... but likely your own body, etc. will be just as stable. Link to comment Share on other sites More sharing options...
Gary Naka Posted October 31, 2019 Share Posted October 31, 2019 The problem is that a tripod is stable to the boat, not the subject. And it will transfer all the boat's motion to the camera. As JDMvW said, your body would compensate for some of the boat's motion, reducing the motion transferred to the camera. Example, the boat rocks left, your legs move to the left, to keep your upper body kinda stable. Link to comment Share on other sites More sharing options...
Robin Smith Posted October 31, 2019 Share Posted October 31, 2019 Yes, true, but it will still help. It won't be very good, but better than without. Whether it is good enough will depend on the degree of swell and the size of the boat. Robin Smith Link to comment Share on other sites More sharing options...
JDMvW Posted October 31, 2019 Share Posted October 31, 2019 Yes, true, but it will still help. It won't be very good, but better than without. Dubious. Link to comment Share on other sites More sharing options...
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