疊出了首次滿意的木星相片

C.L.Chan

疊出了首次滿意的木星相片

自從跟天文同好學懂拍攝, 疊相, 後期處理三個軟件之後, 一直摸索獨行. Dr. Wong 看了我的觀測記錄, 飛覺有問題. 才知道我走錯了路. 經更改的內容如下:

FireCapture :

(1) Frame Exposure time change from 0.5 ms > 5-8 ms, Gain 40 > 20, (我以為短曝光受不良大氣影響較少,)( 黃: 不會, 大增益, 噪訊大, 短曝小, 良訊少, 最好不用 Gamma.)

(2) File type change AVI > SER

(3) At the lower left-hand side find Setting, then go to Image debayer, chick “Always record undebsyered (RAW) but preview in colour”

AutoStakkert ;

(1)        Un-chick “Sharpened” under Stack Option (right-hand side)

(2)         Chick “Drizzle 1.5x”

(3)        Push Picture Zoom to a bigger size

(4)        Choose  AP size to “16”

(5)        Chick “Place AP grid”, chick more times you get more AP, longer stacking time is needed (4 hours).

RegiStax :

(1)        Wavelet scheme choose Linear

(2)        Initial Layer choose 1

(3)        Step Increment choose 1

(4)        Wavelet filter choose Default

(5)        Chick on but not release the square under Layer Preview, you can see noise picture

(6)        Usually more noise in L1 to L2, so adjust it.

(7)        Less noise at higher layers.