diamler
Member
Is their a time in the year that Nikon puts out all of it's new product or do they do it when ever they want to in the year? I want to know when they will come out with a 300MM 2.8 VR.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Is their a time in the year that Nikon puts out all of it's new
product or do they do it when ever they want to in the year? I
want to know when they will come out with a 300MM 2.8 VR.
Is their a time in the year that Nikon puts out all of it's new
product or do they do it when ever they want to in the year? I
want to know when they will come out with a 300MM 2.8 VR.
Nikon is like Apple. Great secrets, great products, no availability...Nikon is more secretive than just about any company I know. There
doesn't seem to be any rhyme nor reason regarding their product
announcements, much to their detriment, in my opinion. They seem to
be more interested in protecting their secrets than letting their
customers know what's coming.
I just purchased the 200mm VR lens, and yes $1600 is rather steep for a non pro like me. Do you think the 300mm would be a couple hundred more?Hi,
Given the price of the 200mm VR lens, I shudder at the thought of
how much Nikon will charge for the 300mm and 400mm versions!
Gizmo
I just purchased the 200mm VR lens, and yes $1600 is rather steepHi,
Given the price of the 200mm VR lens, I shudder at the thought of
how much Nikon will charge for the 300mm and 400mm versions!
Gizmo
for a non pro like me. Do you think the 300mm would be a couple
hundred more?
Tony
Jason, We must be talking about different lenses. This my 200mm VR that I purchased for $1600 not 4 grand.I don't know Nikon lenses well but I'm sure the 200VR will go for
$4k or so not $1600. A 300f/2.8 VR would likely be a bit more, as
it'd be both a longer lens and be slightly wider (larger front
glass).
Jason
That is a 70-200mm VR lens, not a 200mm VR lens. The reason someone brought up the 200mm lens, is because it will be a very good first order approximation for the price of the 300f/2.8 VR lens. Lots of $. The 200mm VR lens can be seen here:Jason, We must be talking about different lenses. This my 200mm VR
that I purchased for $1600 not 4 grand.
the 200mm is a f/2 and the 300mm is a f/2.8, big differenceThe reason
someone brought up the 200mm lens, is because it will be a very
good first order approximation for the price of the 300f/2.8 VR
lens. Lots of $.
Actually the difference is not too big. One lens has a 100mm aperture and the other lens has a 107mm aperture.the 200mm is a f/2 and the 300mm is a f/2.8, big difference
since the VR will introduce some addtional lenght in the lens design, the difference in front element area will be a lot more.Actually the difference is not too big. One lens has a 100mmthe 200mm is a f/2 and the 300mm is a f/2.8, big difference
aperture and the other lens has a 107mm aperture.
For example look at the 500f/4 vs the 400f/2.8. You've got a 125mm
aperture vs. a 143mm aperture. Sure the 143mm aperture is a big
more, but it gives a good 1st approximation. I'd expect a 300f/2.8
VR to be 10% more than a 200f/2 VR.
Jason
The length of the design has nothing to do with the front element area at this focal length. The extra length will be in the area toward the rear where the cone of light has been compressed quite a bit. Take for example a 200f/2.8 and a 400f/5.6 prime lens. They have nearly identical front element size, and for a good reason. All they have to do is capture enough light to satisfy their aperture (since the VR will introduce some addtional lenght in the lens
design, the difference in front element area will be a lot more.
not the same aperture at all, 2 stop from 2.8 to 5.6The length of the design has nothing to do with the front elementsince the VR will introduce some addtional lenght in the lens
design, the difference in front element area will be a lot more.
area at this focal length. The extra length will be in the area
toward the rear where the cone of light has been compressed quite a
bit. Take for example a 200f/2.8 and a 400f/5.6 prime lens. They
have nearly identical front element size, and for a good reason.
you will have to explain it better to me.All they have to do is capture enough light to satisfy their
aperture (71mm) and not cause any angle of view issues with
filters etc. At 200mm and beyond this FOV aspect of the equation
becomes an insignificant part of the size.
Jason
wont the VR in itself need a bigger front element ? How can VR work without clipping the corners (vignetting) if the front element is the same as a non-vr lens ?since :
-the lens will be longer because of VR addition
-the additional VR elements will introduce some (small) light loss
-the circle of light illuminating the sensor/film will need to be
bigger since it will move because of the VR, not a lot but still
how come the front element wont be bigger ?
Of course they are not the same f/stop, neither are the 200 and 300 we're talking about so who cares?not the same aperture at all, 2 stop from 2.8 to 5.6
Actually, the lens may or may not be longer. There is no physics that says it has to be longer (such as the physics that determines the minimum front element size). As an example many Canon IS lenses were shorter than the lenses they replaced. In the case of Nikon the lenses they are going to replace are a bit more optimized for size so they may grow a tiny bit in length.-the lens will be longer because of VR addition
That is the Tstop, and that has nothing to do with anything here. If you try to compensate for this by changing the f/stop you will screw up your DOF functions. 35mm lenses are rated in f/stop, and not t/stop, and that will not change any time soon.-the additional VR elements will introduce some (small) light loss
The size of the circle of light has nothing directly to do with the f/stop or focal length. An Olympus 300f/2.8 has a circle of light 1/4th the size of the Nikon 300f/2.8, yet the front element is almost identical. Enough said? This issue is we're at a long focal length where this increase in angle of view is not going to change the front element significantly. If this were a wide angle lens, it would (as in the case of a lens with tilt/shift).-the circle of light illuminating the sensor/film will need to be
bigger since it will move because of the VR, not a lot but still
At this point we're starting to lose track of the topic, and the question. Bigger than what? Why isn't the front element of a 300f/2.8VR bigger than a 300f/2.8? I've answered that above.how come the front element wont be bigger ?
No.wont the VR in itself need a bigger front element ?
The size of a front element does not determine it's ability to "see" (really to let light in) across an angle. As a great example (sorry to use it so many times) the Nikon 300f/2.8 can "see" twice as wide as the Olympus 300f/2.8, yet the size of the front element is the same.without clipping the corners (vignetting) if the front element is
the same as a non-vr lens ?