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

Started 2 months ago | Discussions thread
Duckman21 Forum Member • Posts: 75
Re: 90d and Tamron 150-600 - sharpness issue or wrong expectations

This lens is hit or miss wide open at 600mm. It can be quite sharp on some occasions, but more often than not it appears hazy and soft. Your first image is consistent with how most of my f6.3 600mm images look even if objects are in focus. Stop it down to f8 or f9 if you want more sharpness (be sure to bring down the shutter speed if possible). Note that you will lose depth of field and it doesn't do anything about heat/atmospheric haze which this lens seems sensitive to at the longer focal lengths.

As for focus, I tend to notice front-focusing with my unit and typically set it to +10 at all focal lengths on the 80D. You could try using the AF Microadjustment of the camera, or you could purchase the Tamron Tap-In Console. I found the Tap-In adjustment process quite tedious and not necessarily accurate for adjustment.

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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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