http://goo.gl/NcAcjZ
Rumors: new special Nikon D810 version designed for deep-sky astrophotography
with increased hydrogen-alfa sensitivity
Here is a rumor that just came in: next week (probably on February 2nd or
3rd), Nikon will announce an all new, special version of D810 DSLR camera
designed for deep-sky astrophotography with increased hydrogen-alfa
sensitivity.
Given the short notice, I do not have enough time to get any confirmation
from other sources. Because of that, I will give this rumor a probability
rating of "only" 60%.
Back in 2012 Canon did something similar with the EOS 60Da model.
Nikon has several articles on astrophotography on their website.
大致上就是2012年卡人曾经推出60D的星空摄影特别版60Da
增加对Hydrogen-Alpha (H-α)敏锐度
使得低光长时曝光能有更纯净的画质、更少的噪声
而目前“有60%可能”要推出的D810特别版
以135的片幅及更强悍的尼控技术
相信会比60Da的画质还翻了数倍