90d and Tamron 150-600 - sharpness issue or wrong expectations

Started 2 months ago | Discussions thread
Duckman21 Forum Member • Posts: 76
Re: 90d and Tamron 150-600 - sharpness issue or wrong expectations

That's as sharp as this lens gets wide open. Regardless of ISO that's very much as sharp as this lens can get for such distant subjects. Stopping it down to f8 is a bit better but it still looks hazy like this. Heat haze is a factor but this lens still falls short compared to a dedicated birding spotting scope.

Both Sigma and Tamron have USB docks.

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 Duckman21's gear list:Duckman21's gear list
Canon EOS Rebel T6s Canon EOS 80D Canon EF-S 18-135mm F3.5-5.6 IS STM Tamron SP 150-600mm F5-6.3 Di VC USD G2
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