Hey, can you put a price on maximum male compensation?
The seven pound hood seems to be a thoughless material choice, but it sounds like they went with machined metal because of the very limited production volume and cost of making an injection mold for the mondo hood.
Sigma don't appear to have had anything real to announce, so the purpose of this mock-up might be nothing more than a marketing initiative designed to generate loads of positive Sigma press coverage, which it is doing! I bet it never makes it into production.
Such an exotic lens may have most of its value for PR as opposed to being very profitable for the manufacturer, but you have to give Sigma credit for delivering a real buzz-generator.
Actually, the DP1 is a lot more interesting to me. Sigma also announced an 18-200 mm F3.5 - F6.3 DC OS. That's taking a direct shot at Nikon's 18-200 VR zoom. If anything, the Sigmass lens diluted the attention that their new lens and compact camera deserve.
Well, they officially announced the 18-200 with OS (VR). Maybe they will actually have it available in stores and thus steal a march on the Nikkor 18-200! Plus, I notice it has a zoom lock so you can carry it around without having it slowly extend out. That by itself may cause some folks to switch.
Too bad it's f/6.3 at the long end, though.
As for the 200-500 f/2.8, I think I'll wait until they show up on the used market!
>so the purpose of this mock-up might be nothing more than a marketing initiative designed to generate loads of positive Sigma press coverage
That might be the case with a traditional looking lens but this one is just too different to be a marketing fake. The lens body looks to utilitarian to be dreamed up by a marketing bod, they add all sorts of bells and whistles. You might say that the powered zoom is a bell and whistle but for the kind of rotational throw this lens may have a traditional ring may not be very good and so a powered zoom may make more sense.
It still smacks to me of military and survillance. Lens manufacturers love to add sparkle to the body of a lens to help sell them. I know this is a prototype but where is the big gold ring round the end of the lens barrel to show this is a premium lens, where is the gold lens ID plate for the makers name and serial number. For something that size a marketing bod should have scrawled SIGMA in huge type down the side of the lens body just like Zeiss di with their 1700mm. But no, it's all very black and utility. Gut feel is that Sigma are trying to flog this to the military and security services. I wouldn't be surprised if it turned up on the booths of an arms show or two in the near future. They may even have a client order already as a lens like that is not something you'd want to spend money developing unless you were pretty sure of selling a few of them.
The lens looks nice but that grey lens mount they've used really sucks. Looking at the picture the lens mount may even weigh more than the hood. Good grief is that really wood it's made of? Maybe the wood is to help damp vibration? }>
Seriously though, 28lb equates to over 12kg which is twice the wieght of the Sigmonster. My back already hurts from the Sigmonster, I can't imagine what kind of damage that monster could do to someone if they had to heft it around for any amount of time. Maybe you should recommend that they fit the carrying case should really come with rollers (or golf cart wheels?)
i don't think it's a joke; i think this is simply what it takes to build a 200-500mm f/2.8 lens. somebody was bound to do it eventually...it's not like those specs don't have great appeal. you know they do. i'd *love* a 200-500mm f/2.8, and especially one that comes with a 2x teleconverter. on a Nikon DSLR this thing is a 300-750mm f/2.8 and a 600-1500mm f/5.6 in one two-piece package. sure, i wish it could be smaller and lighter, but it couldn't. the size and weight are just a couple of the reasons no one's done it before.
Wouldn't you think the depth of field would be extremely shallow at 500mm wide open at the minimum focusing distance? From that perspective, it must not be able to focus very close compared to other 500mm zooms.
This is one of those cases, when it is worth spending loads of money developing and making something quite impractical just to boost your company tech image. Instead of writing an acticle "we could do it", you manufacture one and say "we can do it and we can do lot´s of other things too". A real classic.
The applies for the fastest, biggest etc etc. cars of different makers. Often not real money makers,
Much more money would have been coming in with a high resolution, very light FULL CARBON construction hightech 500mm F/3.5 or a 400mm f/2.8 with real AF and VR, IS, ED and all the other 2-3 letter abbreviations available.
>This is one of those cases, when it is worth spending loads >of money developing and making something quite impractical >just to boost your company tech image. Instead of writing an >acticle "we could do it", you manufacture one and say "we >can do it and we can do lot´s of other things too". A real >classic. > >The applies for the fastest, biggest etc etc. cars of >different makers. Often not real money makers, > >Much more money would have been coming in with a high >resolution, very light FULL CARBON construction hightech >500mm F/3.5 or a 400mm f/2.8 with real AF and VR, IS, ED and >all the other 2-3 letter abbreviations available.
we'll see whether it sells. but i think it will. especially to photographers with strong assistants.
full carbon construction? can carbon fiber even be used for lens bodies? i don't think so...
Is it a concept lens or for real. It surely is a lens for scientific or industrial use. Surely not a professional lens, it would have to be a lot smaller or at least lots lighter. Reminds me of the days when Nikon used bring out such monster lenses, like the 300f2 that was sharper than a 300f2.8 at f2 or the 1200-1700 f5.6 and 2000 f11.