What are the limitations of existing lens mounts? And benefits of a new mount? (regarding new mirrorless mounts)
Jul 28, 2018 12:12:01 #
sandiegosteve
Loc: San Diego, CA
As we are starting to see more information out the coming mirrorless mounts for Nikon and Canon, do we know why they would want a new mount?
I'd think that the distance between the mount and the sensor are the most important optically. But, I don't really know much and assume the mounts drive weather sealing, stability and a way to easily change. What else can they do?
Does anyone know what benefits a new mount brings? (please don't talk about financial benefits for manufacturers with us needing to buy new mounts).
I'd think that the distance between the mount and the sensor are the most important optically. But, I don't really know much and assume the mounts drive weather sealing, stability and a way to easily change. What else can they do?
Does anyone know what benefits a new mount brings? (please don't talk about financial benefits for manufacturers with us needing to buy new mounts).
Jul 28, 2018 12:21:49 #
sandiegosteve wrote:
As we are starting to see more information out the... (show quote)
The flange distance, from the sensor to the last element in the lens, is shorter for mirrorless vs DSLR. Nikon knows that it will be necessary to 1) introduce new fast primes to attract Pros that will take full advantage of the mirrorless body and 2) not cut adrift those of us with existing Nikon glass like Canon did when the EOS mount was released with an OEM adapter for existing F mounts lenses.
And, with all of the changes in the industry, you wonder what is going on in Canon's Corporate Boardroom?
Jul 28, 2018 16:14:18 #
sandiegosteve wrote:
As we are starting to see more information out the... (show quote)
I must say that I admire the way you have thinly veiled your question in view of Nikon's recent announcement. I'm sorry for the levity. I have no answers that do not violate your exclusion. However, we have many members more qualified than I who will give you logical answers to your question.
Jul 28, 2018 16:18:03 #
I’ve been *very* happy with the range of lenses (current and ‘road map’ future), the lens mounts (X-series and new flagship H-series), sharpness, color rendition and contrast available from Fujifilm gear. I strongly recommend them. /Ralph in the WI north woods.
Jul 28, 2018 20:24:31 #
sandiegosteve
Loc: San Diego, CA
I was hoping someone would say it allows them to make lenses with better VR, or fix my composition. I think the change in flange distance will change the optics and a different mount will make some sense so that people don't put a lens that won't work.
My only current concern for mirror-less is that they aren't too small. I've got big hands and don't like shooting without my grip. But this is a totally different topic.
My only current concern for mirror-less is that they aren't too small. I've got big hands and don't like shooting without my grip. But this is a totally different topic.
Jul 28, 2018 21:03:08 #
sandiegosteve wrote:
I was hoping someone would say it allows them to make lenses with better VR, or fix my composition. I think the change in flange distance will change the optics and a different mount will make some sense so that people don't put a lens that won't work.
My only current concern for mirror-less is that they aren't too small. I've got big hands and don't like shooting without my grip. But this is a totally different topic.
My only current concern for mirror-less is that they aren't too small. I've got big hands and don't like shooting without my grip. But this is a totally different topic.
No the new mount won't allow to make better lenses with VR in fact I think the lenses won't be VR as the camera would have IBIS. I don't think your composition needs to be fixed but the Nikon F mount does. Since Nikon decided about 30 years ago to keep the F mount they created a mess with a lot of variations of the mount. So if they ever fix it it would be now.
Jul 28, 2018 21:50:17 #
There are a number of limitations with Nikon’s F Mount. The biggest single limitation is the size of the F Mounts opening.
It’s difficult for Nikon to design fast glass with a the “small” opening. Think Nikon 85mm f1.4 v Canon 85mm f1.2, Canon can but Nikon can’t...(well, not very easily and at no price point any sane person would accept!).
A wider opening at the mount will allow more light in, and fast lenses should be more easily achieved. With a wider opening st the mount, lens speeds like f1.4 should be cheaper, and less complex. F stops might even come down (or is that up?) to sub f1.0 speeds. Example: one could hope for a 105mm f1.4E like optic at 2/3 the price point of the F Mount.
Other advantages really reside in the electronic communications between the lens and body. Things like wider bandwidth allowing faster communications between lens and body can provide more data for the camera to work with, and maybe more battery power through a larger bus etc together might result in faster/bigger/better/more focus acquisition etc. maybe even some tasks passed off to the lens? Or some tasks taken off the lens (think VR being built into the body rather than the lens) Who knows...in the history of electronics I can’t think of an example were a bigger comms bus was a bad thing that didn’t also drive fundamental configuration changes.
Having said all that, I’m perfectly happy with my collection of dinosaurs like the D500 & D810. And that 400mm f2.8E FL I got, well, I guess I’ll just have to toss it the day following the official announcement of the new Nikon mirrorless. 🙄
It’s difficult for Nikon to design fast glass with a the “small” opening. Think Nikon 85mm f1.4 v Canon 85mm f1.2, Canon can but Nikon can’t...(well, not very easily and at no price point any sane person would accept!).
A wider opening at the mount will allow more light in, and fast lenses should be more easily achieved. With a wider opening st the mount, lens speeds like f1.4 should be cheaper, and less complex. F stops might even come down (or is that up?) to sub f1.0 speeds. Example: one could hope for a 105mm f1.4E like optic at 2/3 the price point of the F Mount.
Other advantages really reside in the electronic communications between the lens and body. Things like wider bandwidth allowing faster communications between lens and body can provide more data for the camera to work with, and maybe more battery power through a larger bus etc together might result in faster/bigger/better/more focus acquisition etc. maybe even some tasks passed off to the lens? Or some tasks taken off the lens (think VR being built into the body rather than the lens) Who knows...in the history of electronics I can’t think of an example were a bigger comms bus was a bad thing that didn’t also drive fundamental configuration changes.
Having said all that, I’m perfectly happy with my collection of dinosaurs like the D500 & D810. And that 400mm f2.8E FL I got, well, I guess I’ll just have to toss it the day following the official announcement of the new Nikon mirrorless. 🙄
Jul 29, 2018 09:01:27 #
HT wrote:
There are a number of limitations with Nikon’s F M... (show quote)
Nikon has two new lens design patents for the mirrorless system. One is a 50mm f/0.95 and the other is a 35mm f/1.2. I want that 50mm f/0.95.
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