Hot answers tagged travel
Watch the shutter speed: your focal length x 1.6 (crop factor) x 2 (or even 3) - added for the helicopter. For example for 250 mm you need: 250 x 1.6 x 2 = 800 - that is 1/800 shutter speed Most probably you'll have sun. Hence a good Circular Polarizer will help you. I'd recommend Marumi as a best price/performance ratio. I have them and I'm very pleased. ...
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