Swanseajack
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Just a thought, and turning your question around @BillN_33 is the older glass outperformed by the newer sensors and why Nikon seem to be improving some of their lenses with the newer Phase Fresnel/Fluorite designs?
Isn't that to decrease the weight?
I don't think PF affects IQ, as Chris says it significantly reduces weight and size, the F (Flourite) lenses are more to do with combating CA, dust & water so neither would seem to be aimed at meeting some new camera technology advancement ... however the E (Electronic Aperture) is designed to meet the higher frame rate of the newer cameras. Nowt to do with IQ though![]()
Uh oh...I hope that doesn't mean I won't be able to get 10fps on my 500mm then since that's the older D type![]()
I don't think PF affects IQ, as Chris says it significantly reduces weight and size, the F (Flourite) lenses are more to do with combating CA, dust & water so neither would seem to be aimed at meeting some new camera technology advancement ... however the E (Electronic Aperture) is designed to meet the higher frame rate of the newer cameras. Nowt to do with IQ though![]()
Just had a look on the Nikon site for the 300mm PF.... Looking at their blurb it also helps with sharpness along with CA and Ghosting. Also it goes onto say that they are better for peak performance from Full Frame cameras. The old design had been around for a few years and needed updating even if it was just for VR. These new designs are the way forward, but are they worth the extra bucks for the longer lenses like the 500mm and what would the improvement be on a camera like the D810 or D500?
"But handling isn't the only advantage; the PF element also performs brilliantly—achieve new levels of sharpness and clarity with virtually no chromatic aberration or ghosting".
"The AF-S NIKKOR 300mm f/4E PF ED VR is a cutting-edge lens engineered to draw peak performance from high-resolution full-frame cameras. The Phase Fresnel element nearly eliminates chromatic aberration on its own. When combined with an Extra-low Dispersion (ED) glass element and Nano Crystal Coat (N), it delivers strikingly clear, accurate images".
http://www.nikonusa.com/en/nikon-products/product/camera-lenses/af-s-nikkor-300mm-f%2f4e-pf-ed-vr.html
Sounds like he's in the camp that believes an uncropped/lesser cropped APS-C shot will be better/show more detail than a heavily cropped FF then.
DX sensors make the most of FF glass because they only use the (higher IQ) center portion of the FOV... not that I ever really care about the corners w/ wildlife/sports. DX lenses are easier to design/make for the same reason, they only have to optimize a smaller image circle (or smaller portion of it).One of the areas that has always slightly worried me slightly is if "good glass" is really used to it's best on DX sensors ......... I just wonder is say the expensive Nikon lens perform differently, (slightly worse) than they do on the FX sensor bodies ..... there must be some technical test around to compare this......... or if DX designed lens will perform better than non DX designed glass
Yeah... but that's wrong/oversimplified...Sounds like he's in the camp that believes an uncropped/lesser cropped APS-C shot will be better/show more detail than a heavily cropped FF then.
DX sensors make the most of FF glass because they only use the (higher IQ) center portion of the FOV... not that I ever really care about the corners w/ wildlife/sports. DX lenses are easier to design/make for the same reason, they only have to optimize a smaller image circle (or smaller portion of it).
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I've seen/heard of numerous cases where an old FF lens design performs worse on digital, and sensors w/ smaller pixels will emphasize that. And it's not too uncommon for older lens designs to require significant AFMA.This would be logical, but I have read this several times but I have also read that certain (FF) lens perform poorly on DX bodies
I will try to find the references, but I think the Canon 70 200mm was mentioned
but one source says one thing and the other source another
It may not; or just as likely, there is no benefit to FF cropped...so why pay for it?Re: DX verses FX cropped, there is a 'technical' argument and an 'in the field' argument .. personally I am of the view that for much of the wildlife shooting I do an FX cropped just does not offer the benefit of DX.
Yep I get that, but there's been an ongoing argument that a cropped FX will look better than an uncropped DX that's allYeah... but that's wrong/oversimplified...
It's not about the size of the sensor or even cropping exactly... It's about the resolution of the sensor (pixel size), resolution of the lens (IQ/aperture), and what you have left after cropping/not cropping. Simply saying DX vs FX leaves too many variables.
That's surprising as they're roughly the same MP. In this case I would expect FX to be betterIt may not; or just as likely, there is no benefit to FF cropped...so why pay for it?
I had a D800 and a D7000 at the same time... the D800 DX crop was/is essentially identical to the D7000.
It *can*... it depends on what you get out of the smaller sensor, and what size they are displayed/printed at.Yep I get that, but there's been an ongoing argument that a cropped FX will look better than an uncropped DX that's all![]()
Why? All of the advantages the D800 sensor has are being cropped away/discarded...That's surprising as they're roughly the same MP. In this case I would expect FX to be better![]()
Well I would have expected the D800 to have less noise and better DR etc. Resolution would be the same but I'd expect the D800 to look cleaner and sharper.Why? All of the advantages the D800 sensor has are being cropped away/discarded...
If you are only left with a DX sensor area, then it *is* a DX sensor (or 4/3, 1", etc).
It doesn't work that way... If the area remaining is the same size, and the pixels are the same size, then the image is made up with the same information (qtty of light, noise, color, etc, etc).Well I would have expected the D800 to have less noise and better DR etc. Resolution would be the same but I'd expect the D800 to look cleaner and sharper.
OK, if I get this right are you saying that if you downsample a D810 to match the resolution of the D7000 then the D810 will show less noise, but if you crop the D800 to match the D7000 the appearance of noise will be roughly the same? ( I say roughly as the D800 pixel size is marginally larger)It doesn't work that way... If the area remaining is the same size, and the pixels are the same size, then the image is made up with the same information (qtty of light, noise, color, etc, etc).
Check out the comparisons in screen display mode (pixel for pixel)... http://www.dxomark.com/Cameras/Compare/Side-by-side/Nikon-D800-versus-Nikon-D7000___792_680
The advantage the D800 has in the "print comparison" is due to oversampling (printing/displaying relatively smaller).
Yes. And the same is true for color information, DR, etc... pretty much everything. That's because for the same smaller size print/display (D7000 at 100%) the information of 4 pixels from the D800 are being combined. That's 4x the light, color data, etc, for a given pixel displayed. But when cropped that can't happen.OK, if I get this right are you saying that if you downsample a D810 to match the resolution of the D7000 then the D810 will show less noise, but if you crop the D800 to match the D7000 the appearance of noise will be roughly the same? ( I say roughly as the D800 pixel size is marginally larger)
How did you come to the conclusion that "focusing on a par" with the D7100 ?Managed to see one first hand yesterday the guy was using a 200/500 lens on it and I had the 80/400 on my D7100 with the 80/400and if I am truly honest I can't really
see me spending the money, I don't need/use loads of FPS, focusing seems on a par as does picture quality so will wait and see how things pan out with those that have them.
Might just settle for a new/used D7200 or see what Nikon does next
How did you come to the conclusion that "focusing on a par" with the D7100 ?
That's why I don't own DX any more... but it also depends on your uses and how you are comparing them (100% zoom, same size print, 2048x web, etc)FX v DX .... I have in the majority times found FX images to be better, (less noise) than DX, (D750 v D7200, but certainly D810 v D7200) .........but I think it may depend on the shot and how near you are
say a small bird from 8 to 10 - FX v DX ....... and certainly if you are very near .. at almost cropable portrait head distance .... are less noisy taken from the same distance and cropped FX v DX ........ not sure what the cut off point is
with the latest NR software, especially if you have a clean background, noise can be reduced considerably on the DX image bringing it near the FX ...... in many cases .. but when you have to go into the bird, NR get noticeable
as I said, just my experience
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These are really really nice. How far away from the white throat and flycatcher were you, and how much (if any) cropping was there? I'm assuming with crop factor you're getting the effective focal length of over 1200mm?
Thanks for this, appreciate it.Thanks. I'll guess at the distance at approx 25' - 30' for the White throat and closer for the PF about 15' - 20'
The White throat is cropped to remove all the twigs and shrubbery that surrounded it, then reduced in size for the web, then sharpened with USM. Less cropping with the Pied but basically the same process. I did apply some light NR to the pied background.
All this talk here is healthy alright, but we need photo's please.
and now waiting seemingly ages for the battery to charge. 
Ooh, my camera's arrived,and now waiting seemingly ages for the battery to charge.
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It didn't come with a manual (grey import), but looking back at the listing it isn't mentioned as being in the box. Ah well, I can peruse the manual with on the tablet.![]()
FLIPPIN 'eck.
I've got a D750 which I've taken 9 frames with since last October. Now I NEED a D500 to put with a 200-500 which I don't own....HELP...!!
Here you are![]()
Some nice images there, Michael. Thanks for posting (y
Which lens were these taken with?