[mst]

[quote name='miro' timestamp='1297155582' post='5950']

4. VC works fine but there is no dedicated panning mode??? Does the VC switch automatically to panning mode when I move the lens horizontally?

[/quote]



I'm afraid there is no panning mode (but I'll check to be sure). In addition, the VC works in a very different way than VR.



VR has two stages, when the shutter button is half pressed, VR begins two work with reduced efficiency, but enough to stabilize the viewfinder image. When the shutter is released, VR switches into full gear.



VC seems two know only that full gear mode. This results in a rock solid viewfinder image. At first, this seems to be welcome, however minimal changes to image composition are hard to accomplish, since one always has to fight against VC corrections.



-- Markus

[IanCD]

[quote name='Klaus' timestamp='1297149707' post='5949']

It's similar to the 70-300 IS (non-L). A bit better and worse here and there. No big difference. About the same rating.

[/quote]

Does that rating make it lower IQ than the Nikon (Nikkor AF-S 70-300mm f/4.5-5.6 G IF-ED VR)?

Ooops..? Maybe I made a mistake (6 weeks ago..!) getting the Tamron over the Nikon? <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/unsure.gif' class='bbc_emoticon' alt=':unsure:' />

Ian

[IanCD]

[quote name='mst' timestamp='1297157466' post='5951']

I'm afraid there is no panning mode (but I'll check to be sure). In addition, the VC works in a very different way than VR.



VR has two stages, when the shutter button is half pressed, VR begins two work with reduced efficiency, but enough to stabilize the viewfinder image. When the shutter is released, VR switches into full gear.



VC seems two know only that full gear mode. This results in a rock solid viewfinder image. At first, this seems to be welcome, however minimal changes to image composition are hard to accomplish, since one always has to fight against VC corrections.



-- Markus

[/quote]



How does the VC work..? What am I seeing (where's the data from) when the VC kicks in and I move the camera, but the viewfinder image stays fixed? Feels 'odd'! <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/huh.gif' class='bbc_emoticon' alt='' />

Ian

[Klaus]

[quote name='IanCD' timestamp='1297205228' post='5979']

Does that rating make it lower IQ than the Nikon (Nikkor AF-S 70-300mm f/4.5-5.6 G IF-ED VR)?

Ooops..? Maybe I made a mistake (6 weeks ago..!) getting the Tamron over the Nikon? <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/unsure.gif' class='bbc_emoticon' alt=':unsure:' />

Ian

[/quote]





This one is for Markus ...

I think you've made no mistake. They seem to be similar but the Tamron has less CAs at 300mm thus it's subjectively somewhat sharper here.

[mst]

[quote name='IanCD' timestamp='1297205228' post='5979']

Maybe I made a mistake (6 weeks ago..!) getting the Tamron over the Nikon?

[/quote]



No, you didn't. Both have slight advantages over the other one in some regards, but in summary, they are very close. With a slight advantage for the Tamron.



Maybe it eases your mind to know that I'm seriously considering to keep the Tamron for myself. <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='' />



-- Markus

[mst]

[quote name='IanCD' timestamp='1297206182' post='5981']

How does the VC work..? What am I seeing (where's the data from) when the VC kicks in and I move the camera, but the viewfinder image stays fixed? Feels 'odd'! <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/huh.gif' class='bbc_emoticon' alt='' />

Ian

[/quote]



You still see the image that is produced by the lens. One of the lens' elements corrects your movements, that's why the viewfinder image is rather solid.



The amount of correction is higher, though, than with Nikon VR or Sigma OS lenses (until you fully press the shutter button).



-- Markus

[Brightcolours]

[quote name='IanCD' timestamp='1297205228' post='5979']

Does that rating make it lower IQ than the Nikon (Nikkor AF-S 70-300mm f/4.5-5.6 G IF-ED VR)?

Ooops..? Maybe I made a mistake (6 weeks ago..!) getting the Tamron over the Nikon? <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/unsure.gif' class='bbc_emoticon' alt=':unsure:' />

Ian

[/quote]

Photographers that have used both the Nikon 70-300 VR and the Canon 70-300 IS tell that the Canon is noticably better, especially in the long end.

Likewise with people who have tried the Nikon 70-300 VR side by side with the Tamron 70-300 VC.



If we look at the lenstip reviews, they state that the Nikon 70-300 VR is better in the long end than the Tamron, and better than the Canon. this just points to a big flaw in their testing ways



You have chosen well, in my opinion (based on opinions and accounts from photographers who have used above lens "pairs" and sample images).

[IanCD]

<img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='' />

Thanks folks, that's good & reassuring to hear... especially that you're considering keeping it, Marcus.

I checked out the gallery images... those Full frame Nikon pics are huge...! Are you keeping the D7000...?

Ian

[samos1111]

[quote name='mst' timestamp='1289429540' post='4095']

I stand corrected. I have just finished a few tests and can happily confirm now that after its latest trip to Tamron Service Europe the Di 60 meters as expected. Sorry for saying otherwise first, this was based on some shots in the field only, combined with ... uhm ... user error. A layer 8 issue <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='' />

I will update the review accordingly. Probably also do a quick retest of the MTF values.

[/quote]



Hi Markus,

I haven't noticed the review update? Or something smells fishy again?

Got mine back from Tamron. As I somehow expected, I don't see an improvement in the max aperture department. I mean in M mode, the first click of stopping down the aperture from max doesn't seem to have any effect on the brightness (histogram) of the taken image, the second one barely some, then things start to get going as planned. I guess in MTF that should show as unreasonable sharpness wide open, and also as too wide DoF in the tilted ruler shot.

The A mode looks better than before I guess, though I didn't test seriously. I'm used to rolling the EC dial so I don't really care <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='' />

Kind regards,

Sem



EDIT: I see the review update is there. I think the comment regarding the dark images at max aperture is consistent with what I see (notice that this is more noticeable in M than in A, because in A this is partially concealed by the meter, check the sequence of the shutter times when changing the aperture). I also see unreasonable sharpness wide-open, and the DoF in the tilted ruler shot is indeed not much narrower at F/2 than at F/2.8. I think you guys should not trust the specified apertures.

[janjhoi]

I am looking for anyone who Tamron 70-300 VC. thank for reviews