TBH if I was looking at getting one of these lenses I would also choose the Sigma C, mainly for the reasons mentioned above. At the time I bought mine though I picked up the Tamron 150-600mm £200 cheaper than the Sigma and £500 cheaper than the Nikon so it was a no brainer for me. The Sigma price now matches the Tamron, in which case being able to use the dock would swing it for me. That being said, I have a really good copy of the Tamron and very happy with it, plus my camera doesn't seem to play nice with Sigma lenses for some reason.Tom hard one this, what i see people say the Nikon is better, however i got the Sigma 600 C for these reasons.
As with all DSLRs there can be a back and front focusing issue, and my new D500 does has AF fine tune built in, but when using that its only for 1 focal range so lets say 500mm, you adjust it and it could have an adverse effect on lets say 300 etc., i also didn't want 200mm short end with the 1.5x crop that's 300mm native Full Frame the 225 i have now is just about right... Anyway with the sigma you can buy the dock and when you connect that dock you then get the option to alter 150/250/400 and 600mm focal lengths fine tuning them so they will be all tack sharp.
What i plan to do with mine is use Focal Pro by Reikan and do each focal length so that i can transfer the settings into the sigma dock so in essence fine tine it across the range, a guy on DPreview did it and its very sharp now.
Out of the box i do believe that the Nikon may be your best bet but not by much, but if your into fine tuning so you get the best, and not by just using spyder or lens align id honestly go Sigma and the usb dock, plus you also get an extra 100mm long end so in essence I'm running 225-900mm lens which is great. I find the Sigma C just enough to carry about and I'm quite a well built bloke, i use it mainly for Motorsport to walking round the track i had to factor this in, The sigma S and Nikon i think weigh near the same and they can be quite hefty things, but if your birding then itll be fine...
I doubt any of my babble helped you but i di look long and hard at this and the SIgma got my vote for these reasons
Good Luck
- Better shortend Better Long end as in MM not sharpness
- Lighter
- Very customisable
The difference in framing between 550mm and 600mm on FF really really tiny (might be more noticeable on crop bodies).
to make it easy I'm going to try document the process so that people can try do the same. just need the software to get the D500 and D5 updates and I'm going to startThanks Rob, I have the tamron and i'm very pleased with it.
I was wondering if there was any significant difference in image quality really.
I didn't want to use the sigma and dock as I would end up frustrating myself wondering if I had it set right, lol
Pass, I've got nothing to compare it to tbh.Am I right in thinking that both the Tamron and Sigma are both just 'rounded up' to 600mm anyway? I've read some reports that at infinity one of them is nearer 550mm in reality.
Get something that's 'calibrated' at being 600mm and compare the other lenses I guess.How do you tell ?
Am I right in thinking that both the Tamron and Sigma are both just 'rounded up' to 600mm anyway? I've read some reports that at infinity one of them is nearer 550mm in reality.
Never heard this, though you can easily lose 50mm due to focus breathing with any long lens?
Focus breathing takes the Sigma 150-600 down to around 380mm, but I was referring to the actual focal length at infinity.
380mmFocus breathing takes the Sigma 150-600 down to around 380mm, but I was referring to the actual focal length at infinity.
Why?Just choose whichever one has the same manufacturer as you camera.
Just choose whichever one has the same manufacturer as you camera.
380mmare you sure?
Focus breathing takes the Sigma 150-600 down to around 380mm, but I was referring to the actual focal length at infinity.