[royccw]

Hi there,

I just brought new tamron SP 90mm f2.8 for my D100, I cannot set to f2.8 in A mode with manual focus set to inf. suppose It can provide max. f2.8 but I only have f3.
I do know F value will increase while focus change because light fall off with some certain focus range. But It should give f2.8 in inf.
Anybody experience this? or I got a fault one?

Thanks
Roy

[midikorg]

我記得個老番話Tamron比D100用係冇咁好o咼...
睇o下可唔可以ling返去換支Sigma?
當然,用番nikon就最好啦.....^_^