Nikon updates their nifty 50

So, if this lens is FX compatible with a 58mm thread, could I use a 52mm step down ring when using it with a DX camera? Or would I get vignetting? Or is this just one of those things you've got to try to find out?
 
50 x 1.5 = 75mm? On a APS-C Canon the 50mm become 80mm due to the smaller sensor (1.6x).

Mike, the filter will almost certainly foul the image circle. Maybe you're mixing the sizes up? If you had a 58mm filter and put it on a 52mm threaded lens with an adapter then you'd be alright.
 
OKJ, maybe I was a bit dimissive (I was extrmely stresed léast night, was my PhD viva today - I passed!)

Yes, I agree that many people on crop sensors might find the 50mm 1.8G useful. I just disagree that this lens will A) be expensive, it will have to be much cheaper than the already cheap 50mm 14.G, B), that there is any legal requirement for a 50 1.8 to be less than < £100. Especialyl when you consider the build quality between the nikon and the Canon nifty fifties - the Nikon 1.8 is more like the Canon 1.4 in build quality.


somewhere around £120-160 for a 50mm 1.8G seems perfectly fair.

Consider that 18-55 VR lens are £100, and a prime lens automatically have a much smaller user base. People on a budget buy a 18-55 + 55-200 VR twin kit.
 
robertgilbert86 said:
50 x 1.5 = 75mm? On a APS-C Canon the 50mm become 80mm due to the smaller sensor (1.6x).

Mike, the filter will almost certainly foul the image circle. Maybe you're mixing the sizes up? If you had a 58mm filter and put it on a 52mm threaded lens with an adapter then you'd be alright.
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yeah .. lol, i blame an all nighter :)
 
Snapshot said:
But that's now. Nikon have to plan for what people will buy in the future, not what they have now.
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Yes I know, I was just responding to DP.

I'd be very surprised if anybody on a full frame camera would buy a 50mm f/1.8D over either the f/1.4D or f/1.4G, and I'm saying that the 50mm f/1.8G AF-S won't change that.

What it might do, is increase the number of crop users with 50mm f/1.8s, ultimately leading to more f/1.8G's on full frame cameras, as a byproduct of loads more enthusiasts getting the 50mm 1.8 then moving up into full frame.
 
Ksanti said:
Yes I know, I was just responding to DP.

I'd be very surprised if anybody on a full frame camera would buy a 50mm f/1.8D over either the f/1.4D or f/1.4G, and I'm saying that the 50mm f/1.8G AF-S won't change that.

What it might do, is increase the number of crop users with 50mm f/1.8s, ultimately leading to more f/1.8G's on full frame cameras, as a byproduct of loads more enthusiasts getting the 50mm 1.8 then moving up into full frame.
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Actually the 50/1.4 is rather unimpressive on a D700, particularly wide open, strong CA as a starting point...

If the MTF chart is reflective of real world performance and the aspherical element does it's job then it could be a better performer than the 50/1.4, which was always rather average. Downside, aspherical elements generally produce less nice bokeh...
 
bigredshark said:
Actually the 50/1.4 is rather unimpressive on a D700, particularly wide open, strong CA as a starting point...

If the MTF chart is reflective of real world performance and the aspherical element does it's job then it could be a better performer than the 50/1.4, which was always rather average. Downside, aspherical elements generally produce less nice bokeh...
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In which case, Sigma 50mm f/1.4 surely? Good bokeh, good CA control. Of course the size may be an issue for some but tbh I prefer it.
 
Ksanti said:
In which case, Sigma 50mm f/1.4 surely? Good bokeh, good CA control. Of course the size may be an issue for some but tbh I prefer it.
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You'd have to consider it certainly, however it's less impressive on full frame than a crop sensor. It has different weaknesses (focus issues, soft borders on full frame, fairly severe vignetting and never supremely sharp) though probably less of them. It's also quite pricey. I'd also hesitate to describe it's bokeh as good, it's alright but nothing special, it also being an aspherical lens as I recall.

Though, given we know little about the Nikon it's maybe unfair to hold those against the Sigma, but if the Nikon focused accurately and was as sharp I'd probably take the half a stop loss, especially on full frame where shallow depth of field doesn't require such a wide aperture.
 
robertgilbert86 said:
Mike, the filter will almost certainly foul the image circle. Maybe you're mixing the sizes up? If you had a 58mm filter and put it on a 52mm threaded lens with an adapter then you'd be alright.
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Bah, that's a shame. All my filters are 52mm, because the 3 lenses I own are the 18-55, 55-200 and 35mm prime, all of which use a 52mm thread...

If I was to get this lens I'd have to buy all my filters all over again. :(
 
MikeHunt79 said:
Bah, that's a shame. All my filters are 52mm, because the 3 lenses I own are the 18-55, 55-200 and 35mm prime, all of which use a 52mm thread...

If I was to get this lens I'd have to buy all my filters all over again. :(
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Well, I wouldn't bother with any UV/protector filter for such a lens. And 50mm is not a common landscape lens so a circ polariser wont be need to commonly, and I think the 18-55 at 50mm when stopped down to f/11-13 etc will be more or less the same sharpness as a 50mm prime.



If you do buy some new filters then maybe think about buying them at 67mm or 77mm. Much of Nikons glass has 67mm filters (e.g. 16-85mm, 70-300mm), the pro stuff is mostly 77mm (17-55 2.8, 24-70,70-200).

Then buy a step down ring.
 
Thanks, I'll have a look at getting 67mm filters, I don't have a huge collection but it's a shame that this updated 50mm lens doesn't have a 52mm filter thread as the old non-AFS 50mm lens does have a 52mm thread. Still I guess you can't have your cake and eat it too!

Still, I find myself using my 35mm most of the time, I think I can live without a 50mm for now at least. :)
 
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