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by Scott Fairbairn on Tue Dec 21, 2021 8:42 am
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Does anybody want to hazard a guess on the retail price of the 800PF once it is available? The 500PF is quite a bit less than its f4 counterpart, but I can't see that happening with the 800, but it would be nice.
 

by wdg on Tue Dec 21, 2021 10:11 am
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I saw the price somewhere - around $1300 US
Hope wasn’t a joke :D
 

by Dan Kearl on Tue Dec 21, 2021 10:33 am
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If it is $1300 it will be a joke..... I think $6000, I expect a larger 500pf like lens, if it is available and at that price range,
it will be hugely successful.
I do think it signals that Nikon is not planning a crop sensor version of the Z9. 800mm at full frame competes with the 600f4 and extender that is the go-to for a lot of people. 800mm on a crop sensor would be almost too much.
 

by david fletcher on Tue Dec 21, 2021 10:54 am
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Thinking Dan could be close, but hope we are not feeding Nikon ideas about where they can price it as I'd like to see a mid $5,000/$5,500 range as a killer market price...

Perhaps just as interesting will be when. Releasing the 800 before the 600 F4 comes along, could be a killer marketing move. This could also impact the 600 F4 sales. Alternatively, releasing the 600 F4 first, for what will be a niche sector, may build up pent up demand on the 800. Be interesting to see the sales projections and which way it turns out.
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by Wildflower-nut on Tue Dec 21, 2021 11:46 am
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I'm a canon guy so I'm just guessing. F6.3 is not that much slower than 5.6 so I expect big bucks. Personally, I prefer a 600 f4 over a 800 f5.6 having had two 800's over the years.
 

by E.J. Peiker on Tue Dec 21, 2021 4:33 pm
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Well a Nikon 800 f/5.6 DSLR lens is $13K. I doubt that it would be less than $10K.
 

by SantaFeJoe on Tue Dec 21, 2021 8:29 pm
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E.J. Peiker wrote:
Well a Nikon 800 f/5.6 DSLR lens is $13K.  I doubt that it would be less than $10K.


I can’t agree with that at all. Following that reasoning, a 500 f4 is $10,300 so a 500 f5.6 PF should be about $8,000, but it is only $3,600 (on sale now for $3,300). My guess would be about $6,900.

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by photoman4343 on Tue Dec 21, 2021 9:38 pm
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I have seen estimates from $5000-10,000. Most are closer to $5000. But who knows?
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by E.J. Peiker on Wed Dec 22, 2021 7:10 am
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SantaFeJoe wrote:
E.J. Peiker wrote:
Well a Nikon 800 f/5.6 DSLR lens is $13K.  I doubt that it would be less than $10K.


I can’t agree with that at all. Following that reasoning, a 500 f4 is $10,300 so a 500 f5.6 PF should be about $8,000, but it is only $3,600 (on sale now for $3,300). My guess would be about $6,900.

Joe


My reasoning is that the 500/5.6PF is a full stop slower than the 500/4 where the 800/6.3 is only 1/3 stop slower than the 800/5.6.  So if you do the math purely on a 1/3 stop by 1/3 stop basis based on the 500/4 vs. 500/5.6 pricing difference, the price should be $8067 but the mirrorless lenses all have been coming out more expensive than the DSLR lenses that they replace, so that's where my $10K figure comes from.  All pure speculation, time will tell. :)
 

by Robert Royse on Wed Dec 22, 2021 10:13 am
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The Nikon 800 5.6 sells for over $16k. If they can sell this for $5k with the loss of only 1/3 stop they have to be prepared to sell a lot of them. I would switch to Nikon in  heartbeat.
 

by Scott Fairbairn on Wed Dec 22, 2021 10:53 am
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I'm afraid I agree with EJ. Even at f6.3, that's a big front element. I'm betting at least $10k. I'd rather they made a 600mmf5.6, that would be ideal.
 

by Andrew_5488 on Wed Dec 22, 2021 2:22 pm
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Scott Fairbairn wrote:
I'm afraid I agree with EJ. Even at f6.3, that's a big front element. I'm betting at least $10k. I'd rather they made a 600mmf5.6, that would be ideal.




I'm not sure it will be big. Somebody was scaling image released by nikon of new 800 , guessing diameter on mounting side and came to overall length to be less than 11 inches. That's a letter size !
Didn't mention front diameter.
 

by Scott Fairbairn on Wed Dec 22, 2021 3:19 pm
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Andrew_5488 wrote:
Scott Fairbairn wrote:
I'm afraid I agree with EJ. Even at f6.3, that's a big front element. I'm betting at least $10k. I'd rather they made a 600mmf5.6, that would be ideal.




I'm not sure it will be big. Somebody was scaling image released by nikon of new 800 , guessing diameter on mounting side and came to overall length to be less than 11 inches. That's a letter size !
Didn't mention front diameter.


Isn't the front element diameter determined by focal length/f-stop = lens diameter? So 800mm/6.3 = 127mm? I've no idea how PF optics effect that, if at all. EJ can clarify things I'm sure.
 

by Andrew_5488 on Wed Dec 22, 2021 3:37 pm
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Scott Fairbairn wrote:
Andrew_5488 wrote:
Scott Fairbairn wrote:
I'm afraid I agree with EJ. Even at f6.3, that's a big front element. I'm betting at least $10k. I'd rather they made a 600mmf5.6, that would be ideal.




I'm not sure it will be big. Somebody was scaling image released by nikon of new 800 , guessing diameter on mounting side and came to overall length to be less than 11 inches. That's a letter size !
Didn't mention front diameter.


Isn't the front element diameter determined by focal length/f-stop = lens diameter? So 800mm/6.3 = 127mm? I've no idea how PF optics effect that, if at all. EJ can clarify things I'm sure.




In simple formulas,yes. But simple formulas are not used in complex lenses. 
500pf has 95mm filter thread and overall width is 106mm.
800mm fl has with of 160mm so front lens is probably around 150mm.
My guess it'll be around 110-120mm. That's not big at all.
 

by George DeCamp on Wed Dec 22, 2021 4:23 pm
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by Scott Fairbairn on Wed Dec 22, 2021 4:27 pm
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Andrew_5488 wrote:
Scott Fairbairn wrote:
Andrew_5488 wrote:
Scott Fairbairn wrote:
I'm afraid I agree with EJ. Even at f6.3, that's a big front element. I'm betting at least $10k. I'd rather they made a 600mmf5.6, that would be ideal.




I'm not sure it will be big. Somebody was scaling image released by nikon of new 800 , guessing diameter on mounting side and came to overall length to be less than 11 inches. That's a letter size !
Didn't mention front diameter.


Isn't the front element diameter determined by focal length/f-stop = lens diameter? So 800mm/6.3 = 127mm? I've no idea how PF optics effect that, if at all. EJ can clarify things I'm sure.




In simple formulas,yes. But simple formulas are not used in complex lenses. 
500pf has 95mm filter thread and overall width is 106mm.
800mm fl has with of 160mm so front lens is probably around 150mm.
My guess it'll be around 110-120mm. That's not big at all.


One thing for sure, if the price comes in like the 500PF, substantially lower than the fast version, they will sell a boatload of them. 
 

by hullyjr on Wed Dec 22, 2021 9:32 pm
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Andrew_5488 wrote:
Scott Fairbairn wrote:
Andrew_5488 wrote:
Scott Fairbairn wrote:
I'm afraid I agree with EJ. Even at f6.3, that's a big front element. I'm betting at least $10k. I'd rather they made a 600mmf5.6, that would be ideal.




I'm not sure it will be big. Somebody was scaling image released by nikon of new 800 , guessing diameter on mounting side and came to overall length to be less than 11 inches. That's a letter size !
Didn't mention front diameter.


Isn't the front element diameter determined by focal length/f-stop = lens diameter? So 800mm/6.3 = 127mm? I've no idea how PF optics effect that, if at all. EJ can clarify things I'm sure.




In simple formulas,yes. But simple formulas are not used in complex lenses. 
500pf has 95mm filter thread and overall width is 106mm.
800mm fl has with of 160mm so front lens is probably around 150mm.
My guess it'll be around 110-120mm. That's not big at all.

It will be wider than that.The 500/5.6 requires glass be 89mm diameter (I measured it) and an overall width of 104mm (increase of ~17%). Apply that logic to the 800/6.3, the front element will be 127mm and probably an overall width approaching 140mm before counting the hood.
I really (really) hope it will be closer to $6k than to $10k. The pricing of the 300 & 500mm PFs were cheaper than expected. I still don't understand why they don't just convert that 500PF to the Z mount. There really is nothing to touch it from either Canon or Sony.
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by E.J. Peiker on Thu Dec 23, 2021 6:05 am
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Basic physics, if you want f/6.3 and 800mm simultaneously, the minimum size that the front element will be is 127mm.  Complex lens formulas can modify the length, in other words it won't need to be 800mm long, but you can't get around the opening required to collect the amount of light required for that focal length to be f/6.3.

That means the front element will be approximately the same size, maybe a few mm wider than the 500 f/4 lenses of the DSLR era.  I would expect the final size of the lens to be more or less similar to a traditional 500 f/4.
 

by Scott Fairbairn on Thu Dec 23, 2021 10:31 am
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E.J. Peiker wrote:
Basic physics, if you want f/6.3 and 800mm simultaneously, the minimum size that the front element will be is 127mm.  Complex lens formulas can modify the length, in other words it won't need to be 800mm long, but you can't get around the opening required to collect the amount of light required for that focal length to be f/6.3.

That means the front element will be approximately the same size, maybe a few mm wider than the 500 f/4 lenses of the DSLR era.  I would expect the final size of the lens to be more or less similar to a traditional 500 f/4.



Although it’s an apples to oranges comparison, if a 500f4 element is about the same size, and a 500f4 is a $10k plus lens, then I seriously doubt this lens will be $6-7k. It’d be nice to be wrong though.
 

by ADKShooter on Thu Dec 30, 2021 5:52 pm
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Not that I know any more than anyone else but my sense is that it will be a bit proportionately higher than the 500 pf to the 500 F4.0 because it is only 1/3 stop slower than the 800 F 5.6 instead of  2/3 stops slower as is the 500 pf to it's counterpart. On the flip side may be a bit of a reduction from what I think will be a lack of a dedicated 1.4 converter which comes with the current 800 F5.6.  Having thought about it for a while, I believe it will come in somewhere between $8,500 - $9,000.


Last edited by ADKShooter on Fri Dec 31, 2021 8:46 pm, edited 2 times in total.
 

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