Tokina 400mm f/5.6 AT-X - opinions???

Started Mar 20, 2014 | Discussions
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TRP Contributing Member • Posts: 788
Tokina 400mm f/5.6 AT-X - opinions???

Regarding the AF version of this lense, how does this rate as a telephoto option for Pentax? I know the Sigma 400mm telemacro is coveted, and the non macro versions are not very sharp, so I was wondering how the Tokina stacked up against those lenses?

Existing info online is sparse...

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Pentax K5
Sigma 8-16 f/4.5-5.6 DC HSM
Pentax SMCP-DA 40 f/2.8 ED Limited Edition
Pentax D-FA 100 f/2.8 Macro WR
Sigma 170-500 5-6.3 Apo Asph F/px-af

Dana F New Member • Posts: 22
Re: Tokina 400mm f/5.6 AT-X - opinions???

Opinions are split 50/50. I like my copy of the lens. Relatively sharp wide open, better at f8 and up. I've had the manual focus lens also and find the AF version sharper. It will do a little hunting in the shade or on cloudy days. A friend has the Sigma and has said the Tokina appears sharper.

It will CA with white birds in bright sun, can be fixed in PP or using exposure compensation.

Pretty good price for a 400mm prime with AF. Price ranges $400 to $600 range.

Dana

TRP OP Contributing Member • Posts: 788
Re: Tokina 400mm f/5.6 AT-X - opinions???

Opinions are split 50/50. I like my copy of the lens. Relatively sharp wide open, better at f8 and up. I've had the manual focus lens also and find the AF version sharper. It will do a little hunting in the shade or on cloudy days. A friend has the Sigma and has said the Tokina appears sharper.

It will CA with white birds in bright sun, can be fixed in PP or using exposure compensation.

Pretty good price for a 400mm prime with AF. Price ranges $400 to $600 range.

Dana

And you are comparing to the sigma 77mm telemacro, or 72mm version?
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Pentax K5
Sigma 8-16 f/4.5-5.6 DC HSM
Pentax SMCP-DA 40 f/2.8 ED Limited Edition
Pentax D-FA 100 f/2.8 Macro WR
Sigma 170-500 5-6.3 Apo Asph F/px-af

LDBOK Senior Member • Posts: 1,078
Re: Tokina 400mm f/5.6 AT-X - opinions???

This was my only long AF lens during film days and I was quite satisfied with it. It is a little soft wide open but sharpens up nicely at f8. The story is different with digital, however. It has very bad purple fringing on just about all high contrast edges. The PF can usually be removed in Lightroom, but in a some situations can't be totally removed. This problem led me to get the Sigma 150-500, which has very little CA and virtually no PF. The Tokina is much nicer from a handling standpoint as it is very small for a 400mm and weighs much less than the Sigma 150-500, which can be a load to carry very far.

 LDBOK's gear list:LDBOK's gear list
Pentax MX-1 Pentax K-5 Pentax K-3 Pentax smc DA 15mm F4 ED AL Limited Tamron SP AF 70-200mm F/2.8 Di LD (IF) MACRO +12 more
scve Forum Member • Posts: 53
Re: Tokina 400mm f/5.6 AT-X - opinions???

I own both the Tokina ATX-AF and the Sigma Apo Macro 5,6/400. Of course the Sigma is the winner, sharp wide open, no CA. But it is a lot bigger too, so when I travel for longer periods, want to travel light, but not without a 400, I do find myself taking the Tokina and trade the nuisance of being bulky for the nuisance of postprocessing. At 8-11 the Tokina is certainly sharp but removing CA (pronounced purple edges on harsh contrasts) is inevitable.

 scve's gear list:scve's gear list
Pentax smc DA 15mm F4 ED AL Limited Pentax smc DA* 60-250mm F4.0 ED (IF) SDM Pentax smc DA 70mm F2.4 AL Limited Pentax smc D-FA 100mm F2.8 Macro WR HD Pentax DA AF 1.4X AW Rear Converter +2 more
M R Padmaraju Senior Member • Posts: 2,377
Re: Tokina 400mm f/5.6 AT-X - opinions???

Here is my Tokina 400 5.6  SD result . ATX may be better in my opinion .  This is with Takumar  2x , equivalent of 1200 mm ., at effective F.16 .    Good luck .

mrp.

 M R Padmaraju's gear list:M R Padmaraju's gear list
Fujifilm FinePix F40fd Pentax K-x Pentax K-01 Pentax K-500 Pentax K-S1 +4 more
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