TK

[TK @tkottary]

@options_insight So what happens is there is truly a bad news ? How does the math fare in such an event

[TK @tkottary]

@TailThatWagsDog That's from the original demark indicator on TV. Interesting to see you have 9/13

[TK @tkottary]

@ysdesign_jp Can you design this for other lens as well? Like the sigma 135 art

[TK @tkottary]

@starphoto_nabe yes I have 2 of those :)

[TK @tkottary]

@tjm8874 This is amazing. I really like that area and may be will run into you someday .

[TK @tkottary]

Secure our camera gear — Stop camera robbery - Sign the Petition! https://t.co/hwmkLDvztC via @Change

[TK @tkottary]

#sierranevada #Twitter #milkyway #Astrophotography #mountains #PhotoOfTheDay #backpacking #Nightsky

[だいこもん @pochomskii]

昨晩、一部マニアが憧れたのはこういう画像だったハズ。皆既の月は合成ですが、星を基準に完璧に位置合わせしてます。

昨晩、日本中のみなさんが見上げた月の、その背景にはさそり座が位置しています。周辺は、月のない暗い空で撮影すると、写真のようなカラフルな星雲が広がっています。

[TK @tkottary]

@tenmonReflexion solution https://t.co/zFx1aRPnpV

[TK @tkottary]

@tenmonReflexion most nikons are affected.

[天リフ編集部 @tenmonReflexion]

「焦点距離200mm」。星雲星団を広く撮るのに最適なレンジ。フィルム時代は望遠と言えばまずは200mmだった。この作例は200mmF2の超弩級レンズだが、Askar ACL200やタムロンの新レンズ？で再び脚光を浴びるか？
「星空日誌 | 天体写真の世界」よりピックアップ。
https://t.co/c8fsWaZZpj

[TK @tkottary]

@masahiko_niwa This explains in detail : https://t.co/IZDgZeC7Co

[TK @tkottary]

@starphoto_nabe what was the issue and solution here?

[TK @tkottary]

@black_tenref What's the extended dew shield made up of?

[TK @tkottary]

@MrBooKuu ok thank you :)

[TK @tkottary]

@MrBooKuu thank you. Was this at F4? Exif does not reveal much. That spike on the star at F4 is quite bothering.

[TK @tkottary]

@masahiko_niwa The hidden secret is Bayer drizzle, Vark 1.5 kernel and later integer resample (downsample back ) 2 with average mode. Beware, takes a long time for the drizzle to complete.