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I understand from the editor that a Part 3 is planned, looking forward to more exciting insights then!![]()
Hi,
Part 3 is out.

2013 Sigma 120-300m F2.8 DG OS HSM (S)
I understand from the editor that a Part 3 is planned, looking forward to more exciting insights then!![]()
Looks like the new 120-300mm is finally available in local stores.
how much is it?
Huge that 120-300mm
When researching online, it seems the new "120-300mm F2.8 DG OS HSM | S" has the same optical formula as the previous version. Based on this, is it fair to say the IQ won't change? and that the sharpness will still be an issue at f/2.8?
What factors will tempt you to buy this latest S version instead of the previous version? I was checking with some of the shops, price difference is alot - ~$2.8k vs $4.3k...
Well the ability to use the dock to calibrate AF, AF speed, OS, customer function button, better build, weather seal, newer lens with better sigma quality control. (Fingers crossed).
Btw I tot it is 3.6k(0ld hsm OS version) vs 4.3k for the new sport version. 700-800 diff for the new features
Well, I guess they're trying to clear the older version thus dropped to $2.8k... it makes this lens more attractive.
To me, sharpness at f/2.8-f/4 and AF speed are critical factors for this lens. Other bits (eg, weather seal) I can do without. Doubt anyone would have both versions to compare/review the sharpness & image quality though...