Rumblings about a successor for Nikon's well-regarded D700 DSLR have been going on since early this summer and now they've built up to the level of legitimate rumor noise. Japanese website Digital Camera Info has posted what it believes are the specs of an upcoming D800 model, with a few of the key specs also being confirmed by Nikon Rumors. The name, Nikon D800, and an impressively dense 36-megapixel full frame sensor have both apparently been corroborated by NR's insider sources. Additional digging has unearthed a 100 - 6400 standard ISO range, which can be extended to 50 on the low end and 25600 on the high end. We're told multiple versions of the D800 will be made available, alongside a pair of other product announcements, which are expected to be new lenses.

The rest of the rumored specs include 1080/30p video recording, 4fps continuous shooting, a larger LCD monitor, two slots for CompactFlash memory and one for an SD card, and a shutter durability rating of 200,000 cycles. If all goes to plan, we should be seeing the D800 announced on October 26th and available in Japanese stores on November 24th at a price of ¥300,000 ($3,900). Finally, there's also mention of a Nikon D4, an 18-megapixel top-of-the-line full frame camera to replace the D3s, though that's not expected to show up until at least February. Punch the source links below for more.