D800 + Tamron SP AF 90mm f/2.8 Di Macro 1:1

Started Apr 11, 2012 | Discussions thread
Compact40MP
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Re: D800 + Tamron SP AF 90mm f/2.8 Di Macro 1:1
In reply to surf1, Apr 11, 2012

surf1 wrote:

I have it too, and yes, at close focus, the maximum aperture changes. AFAIK that is normal behavior for a macro lens. I remember reading something about it when I chose this lens some years ago.

Surf

JMacedo wrote:

I have the same combo and just tried the tamon after reading your post. Same thing here. I wonder why. On my D300 reads 2.8 on D800 3.2. Hope someone will come up with some explanation.

Michael Kaplan wrote:

Is anyone using this lens with a D800?

I ask because I just bought one but the f stop won't go below 3.2. I understand by reading one test the it is actually measured as f3 but I would think the camera would show 2.8. Can anyone confirm this?
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Michael Kaplan
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Best regards,

Jorge Macedo
http://www.jmacedophotography.com

I have Canon 100mm macro and this thing doesn't happen. I don't think it's normal behavior for every macro lens, maybe for Tamron.

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