authorizeduser Loc: Monroe, Michigan

DELETED

imagemeister Loc: mid east Florida

Makes the 150 a 210mm .....f4.

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authorizeduser Loc: Monroe, Michigan

The 150mm is already a 225mm on a crop sensor camera. 225mm
x 1.4 = 315mm. At least this is what Sigma told me ..............

Fkaufman3 Loc: Florida, LA ie lower Alabama

I would be interested if still available?
Frank

Leitz Loc: Solms

Be aware that this the old discontinued EX, not the present EX DG. Yes, there is a difference!

lowellk

this is from one of my trusted photography online sources: just fyi: https://photographylife.com/reviews/sigma-1-4x-teleconverter

2) Lens Compatibility

One of my biggest frustrations with the Sigma 120-300mm f/2.8 Sport lens, was the fact that it will not take any of the Nikon teleconverters – they simply will not physically mount. I am not sure if there is a technical reason for not allowing that, but given that teleconverters are mostly “pass-through” lenses for magnification purposes, I initially did not think that I would be faced with any cross-brand compatibility issues. It turns out that teleconverters are very brand-specific. Nikon teleconverters are designed to only work well with Nikkor lenses, while Sigma teleconverters are designed to only work well with Sigma lenses. So if you were thinking of buying a Sigma 1.4x teleconverter to be used for a Nikon telephoto or super telephoto lens – forget about it. Even though the Sigma 1.4x will physically mount on any Nikon telephoto lens that can take teleconverters and it will perform well optically, it will cause all kinds of lens communication and autofocus issues. For example, when I mounted the teleconverter on the Nikon 300mm f/2.8G VR II lens, it confused my camera into thinking that the maximum aperture of the lens was still at f/2.8 (the correct max aperture is f/4 instead, since 1.4x teleconverters lose one full stop of light). When I mounted the teleconverter on my Nikon 70-200mm, it incorrectly communicated the focal length of the lens. I also lost the ability to autofocus. The teleconverter caused both Nikon 300mm and 70-200mm f/2.8 lenses to go to an AF loop and my 70-200mm sounded like it would break if I kept on trying to acquire autofocus. In short, only use this teleconverter with Sigma lenses!

lowellk

Did you have this problem?

GoofyNewfie Loc: Kansas City

You're talking about Full frame equivalent.
The camera sensor size doesn't change the actual focal length, it's still what it's marked, 150mm.
But as far as field of view, it's about the same as a 225mm on a full frame camera.
A 150 with a 1.4x convertor makes it a 210mm lens. (315mm equivalent field of view on a FF camera)

I have the same 1.4x convertor for my DX 50-150 and it works great!
Good luck with selling!

imagemeister Loc: mid east Florida

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imagemeister Loc: mid east Florida

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whatdat Loc: Del Valle, Tx.

I have the Nikon d5200 & d5500 with 18-55vr, 55-200, & 55-300vr lenses with AF. Will this work well on these lenses?

RWR Loc: La Mesa, CA

See lowelk’s post above, particularly the last line - “In short, only use this teleconverter with Sigma lenses!”
I have an APO 1.4x EX myself, image quality is superb with every lens I’ve used it on. But I own no Sigma lenses, have little need for autofocus, and all my Nikons meter with no electrical communication from the lens. The front element of the teleconverter sits about 3mm below the flange - check the position of the rear elements of your lenses to see if it will physically fit. If it does, your meters should work just fine. I’m not sure about autofocus. ’

whatdat Loc: Del Valle, Tx.

Thanks.

authorizeduser Loc: Monroe, Michigan

Works just fine on my Sigma 150mm 2.8 APO EX DG HSM lens. AF work also ......

You are correct, this is NOT the latest DG but i see no issue with it, at least for me.

This is also why I am asking $100.

authorizeduser Loc: Monroe, Michigan

After experimenting with this 1.4x teleconverter doing Macro, I have decided to just keep it.