p.23 #1 · Official Nikon 400/2.8S image thread + some discussions
Do the new Z tele lenses come with a clear filter (drop-in) in the box? Just received my copy of the 400S TC and the drop in filter doesn't have a clear filter unlike the F mount teles.
p.23 #2 · Official Nikon 400/2.8S image thread + some discussions
A filter is not a part of the optical formula in the new Z lenses... the same is true for the 800PF and 600 f4S. You need to buy a filter if you plan on using one to modify the light.
p.23 #3 · Official Nikon 400/2.8S image thread + some discussions
OwlsEyes wrote:
A filter is not a part of the optical formula in the new Z lenses... the same is true for the 800PF and 600 f4S. You need to buy a filter if you plan on using one to modify the light.
bruce
I'm confused here. If a filter is *not* part of the optical formula, how are you able to just drop a filter in and not destroy the optical formula? Conversely, if a filter is part of the optical formula, how does this work if you don't get a clear drop-in filter together with the lens?
p.23 #5 · Official Nikon 400/2.8S image thread + some discussions
AcuteShadows wrote:
I'm confused here. If a filter is *not* part of the optical formula, how are you able to just drop a filter in and not destroy the optical formula? Conversely, if a filter is part of the optical formula, how does this work if you don't get a clear drop-in filter together with the lens?
In the prior super tele offerings, the manual explicitly states that the filter was part of the designed optical formula. The current lenses are designed as is. The use of the filter is just an addition to alter the transmission of light.
I'm not an optical engineer... I am just parroting what I have read.
p.23 #6 · Official Nikon 400/2.8S image thread + some discussions
AcuteShadows wrote:
I'm confused here. If a filter is *not* part of the optical formula, how are you able to just drop a filter in and not destroy the optical formula? Conversely, if a filter is part of the optical formula, how does this work if you don't get a clear drop-in filter together with the lens?
This is exactly why I asked this qn. I never use a filter but then I thought they are always part of the optical formula. Maybe its less of an issue with the Mirrorless bodies considering how the AF works vs DSLRs wherein one could bump into front/back focus easily.
p.23 #7 · Official Nikon 400/2.8S image thread + some discussions
OwlsEyes wrote:
In the prior super tele offerings, the manual explicitly states that the filter was part of the designed optical formula. The current lenses are designed as is. The use of the filter is just an addition to alter the transmission of light.
I'm not an optical engineer... I am just parroting what I have read.
I think it may be possible to design an optical formula that can minimize aberrations induced by a filter at a specific and probably unique place. But it would not catch all aberrations, and it would be an additional and unnecessary constraint on the optical formula, so why would anyone do this?
p.23 #11 · Official Nikon 400/2.8S image thread + some discussions
bs kite wrote:
George: Just thought I'd mention that yesterday (on another website) I saw you mention that you captured the spy balloon from your backyard.
Was it NR? I think so.
Yes he posted it also! I posted a couple on here as well but it turned into a political mess so I stopped! It's still here though!
p.23 #15 · Official Nikon 400/2.8S image thread + some discussions
Just a quick note! A friend of mine ordered the 400/2.8TC from B&H the morning it was announced, he got it today from FedEx, he just called me and is a happy camper!
p.23 #20 · Official Nikon 400/2.8S image thread + some discussions
Wow! Super capture George! You must be elated with these images.
A couple of haggling females (I think ). Never saw this (by either sex) while working in the glades. Of course it does happen. In my younger days I sometimes climbed into a rockery to watch, and we know all the colonial nesters have their little squabbles when nests are close together.
I think Cornell or National Audubon would like permission to use one of these.
). Never saw this (by either sex) while working in the glades. Of course it does happen. In my younger days I sometimes climbed into a rockery to watch, and we know all the colonial nesters have their little squabbles when nests are close together.