Reply to Thread

Message:: [QUOTE="ronterry, post: 1159243, member: 28569"]Flash photography is out of the question but not impossible. These gems are under glass and you would have all kinds of reflections and in some places they are out right forbidden. With low light lens you soon learn why they are called "Fast Lens". Because the Aperture is larger it allows more light in / in less time - meaning less chances for motion blur. If you don't have a fast lens or your using a point-and-shoot you really need a tripod to avoid that motion blur. (In some places those are forbidden)In photography the f-stop number means the size of the aperture - though the number is reversed. So f/1.4 is huge, and an f/5.6 is smaller.With a wide angle lens the hand held threshold is about 1/20 - 1/60 of a second. With a wider lens your talking 1/120 - 1/60 of a second. With a telephoto you might need 1/800 of a second @ over 300mm to hand hold. This is why I dished out all kinds of money for my Canon 24mm L f/1.4 some five or six years ago! It's Super Wide & Super Fast!!! btw: the 'L' just means it's Canon's top of the line, and use special lens to avoid aberrations.When I bought it, it set me back about $1100 bucks...and of coarse you'll need a Canon SLR camera to use it... I should mention that when your shooting at f/1.4 you will reduce your depth of field! So focus is critical!!![/QUOTE]