Belted Kingfisher BIF

Started 3 months ago | Discussions thread
DutchMM Senior Member • Posts: 1,953
Tamron 150-500 vs Sigma 100-400 DN

Just to clarify, is it the autofocus speed or the IQ where you feel Tamron outperforms the Sigma?  If I ever get good enough at aiming my Sony 70-350 when it is fully zoomed, I might be in the market for something a little longer ...

 DutchMM's gear list:DutchMM's gear list
Sony a77 II Sony a6600 Sigma 10-20mm F3.5 EX DC HSM Sigma 50-500mm F4.5-6.3 DG OS HSM Sony DT 50mm F1.8 SAM +8 more
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