本帖最后由 圈儿圈儿 于 2020-5-26 16:22 编辑
拍出一张精美的深空图片，好的相机和望远镜只是基本，后期处理更是展示作者功力的地方，此幅窄带下的NGC6188，由新加坡摄影师Ethan Wong拍摄。累积了38小时的曝光和超过12小时的后期处理，让我们为作者的精益求精点赞。
Name: Ethan Wong
Image Information:
Date: 11/05/2020
Time: (GMT+8) 5.00am
Observing Location: Singapore
Sky Conditions: High Clouds with Average seeing
Object Name: NGC 6188 ; Fighting Dragons of Ara
Telescope/Lens: William Optics Zenithstar 61
Aperture: 61mm
Focal ratio: F/5.9
Camera: QHYCCD 163M
Filter(s): Antlia 3.5nm H-Alpha, OIII, SII
Exposure Time: 38 hours (210x 240s Ha, 150x 240s OIII, 210x 240s SII)
Special Technique Used: Pixinsight and Photoshop for post processing - Central regoin was emphasized to illustrate how active the entire region of nebulosity is, took at least 12 hours to process the entire image which included redoing the entire process 4 times due to unsatisfactory results.
| 
置顶卡
变色卡
千斤顶
显身卡