Pentax 560mm lens now listed on Adorama...any takers!

Started Nov 5, 2012 | Discussions thread
awaldram Forum Pro • Posts: 13,214
Re: Overpriced product - just buy Sigma 500/4.5

temama wrote:

Alex Sarbu wrote:

temama wrote:

I think you get a better lens for much less money.

We do not know yet how well it performs optically, but I see no reason to suppose it's less than very good, or that it's inferior to the Sigma.

These being said, why do you think the Sigma is a better lens?


I don't KNOW (yet) how good pentax 560mm is optically, but I think - I have a strong belief - that Pentax isn't better optically than Sigma 500/4.5 (at f/5.6-f/8), and Pentax is only marginally longer, but clearly slower lens...I will take rather f/4.5 500mm than f/5.6 560mm tele lens.

For what reason ??

560@5.6 gives the same DoF as 500@f4.5

Do you shoot long glass at all ?? as your 'advice' seems way off the mark.

The only valid argument Sigma Vs Pentax is Price Vs Features which has always been the case with 3rd party glass.

Until the lens is quantified there can be no 'value' argument .

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