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F2.8 and light with Canon 17-55 and Sigma 18-35

Started Aug 18, 2015 | Discussions thread
Great Bustard Forum Pro • Posts: 45,641
Wait, wait, wait -- that's your rebuttal?

007peter wrote:

J A C S wrote:

007peter wrote:

For example, shooting at 1/60s~1/100s in lowlight often result in pitch-black-backdrop. Where as using slower 1/10S ~ 1/40s allow me to illuminate the backdrop and avoid the pitch-black backdrop that I find annoying.

The flash freezes the main subject and the background is blurred anyway - so 1/10 to 1/40 sec without IS on this shot would not have made much of a difference.

You're right that both lens will take the SAME PHOTO setting them both at 1/10s ~ 1/40s shutter-speed, in theory.

But in real life, you're dealing with arm fatigue, hand tremors, etc...Keep in mind that Sigma 18-35mm /1.8 is a bulky heavy lens @ 811g, which makes it front heavy & balance poorly on smaller/lighter weight DSLR. It is easy to shoot @1/10s without IS on smaller prime like 50/1.4. It another when trying to shoot @1/10s without IS on a large fix f/1.8 zoom like Sigma 18-35.

Your rebuttal is that an 811g lens is so heavy that it's going to make you shaky?  Well, alrighty, then!  May I recommend the 18-55 IS STM over the 17-55 / 2.8 IS for you.  At 205g, it's much lighter than the 811g 18-35 / 1.8 and the 645g 17-55 / 2.8 IS, not to mention a lot less expensive.

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GKN
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