DSO 遺照集 -- NGC7000
Re: DSO 遺照集 -- M17 reprocessed
M17 reprocessed with Cosmetic Correction tool applied
A result of combining 2 sets of data, both taken with VC200L + reducer + 5Da @PTC in 2015 @1280mm F6.4, autoguided with SX2 mount
1. 4x240s @iso800
2. 9x360s @iso500
A result of combining 2 sets of data, both taken with VC200L + reducer + 5Da @PTC in 2015 @1280mm F6.4, autoguided with SX2 mount
1. 4x240s @iso800
2. 9x360s @iso500
Re: DSO 遺照集 -- Mono cam vs DSLR
130. Mono cam vs DSLR
Non-cooled OSC cameras or DSLRs can provide you with much convenience on image acquisition and maybe on image processing too. However, if image quality is a prime concern, absolutely go for cooled mono cameras.
Left:
Taken with Vixen SD103S apo refractor + 0.79x SD reducer kit + LPS + 1600MM @PTC in Hong Kong in 2018 @628mm F6.1
LRGB = 3x240s : 2x310s : 2x300s : 2x310s
Autoguided with Vixen AXJ mount
Right:
Taken with Vixen VC200L + 0.71x reducer + 5Da @PTC in Hong Kong in 2015 @1280mm 6.4
14x240s @iso800
Autoguided with Vixen SX2 mount
Non-cooled OSC cameras or DSLRs can provide you with much convenience on image acquisition and maybe on image processing too. However, if image quality is a prime concern, absolutely go for cooled mono cameras.
Left:
Taken with Vixen SD103S apo refractor + 0.79x SD reducer kit + LPS + 1600MM @PTC in Hong Kong in 2018 @628mm F6.1
LRGB = 3x240s : 2x310s : 2x300s : 2x310s
Autoguided with Vixen AXJ mount
Right:
Taken with Vixen VC200L + 0.71x reducer + 5Da @PTC in Hong Kong in 2015 @1280mm 6.4
14x240s @iso800
Autoguided with Vixen SX2 mount
- littleming
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Re: DSO 遺照集 -- comparison of M3
131. Comparison of M3
Upper
Combination of data taken in L channel and color data (lower image) taken with 100Da
L-channel:
taken with Vixen SD115S + HD flattener + 1600MM in YL last night @908mm F7.9
60x60s @0C, autoguided with SXD2 mount
Lower
Taken with Vixen SD115S + HD reducer kit + LPS + 100Da in Sai Kung in 2021 @699mm F6.1
25x60s @iso1600, autoguided with SXD2 mount
Upper
Combination of data taken in L channel and color data (lower image) taken with 100Da
L-channel:
taken with Vixen SD115S + HD flattener + 1600MM in YL last night @908mm F7.9
60x60s @0C, autoguided with SXD2 mount
Lower
Taken with Vixen SD115S + HD reducer kit + LPS + 100Da in Sai Kung in 2021 @699mm F6.1
25x60s @iso1600, autoguided with SXD2 mount
Re: DSO 遺照集 -- comparison of M13
132. Comparison of M13
Upper
Combination of data taken in L channel and color data (lower image) taken with 300Da
L-channel:
taken with Vixen SD115S + HD flattener + 1600MM in YL on June 28 @908mm F7.9
19x60s @0C, autoguided with SXD2 mount
Lower
Taken with Vixen R200SS + MPCC + LPS + 300Da at PTC in 2011 @800mm F4
6x300s @iso400, autoguided with SXW mount
Upper
Combination of data taken in L channel and color data (lower image) taken with 300Da
L-channel:
taken with Vixen SD115S + HD flattener + 1600MM in YL on June 28 @908mm F7.9
19x60s @0C, autoguided with SXD2 mount
Lower
Taken with Vixen R200SS + MPCC + LPS + 300Da at PTC in 2011 @800mm F4
6x300s @iso400, autoguided with SXW mount
Re: DSO 遺照集 -- Single shot of Helix
133. Single shot of Helix
A test to see how much detail of this Helix could be captured with a cooled OSC at my observation site in YL with a Bortle scale close to 9.
Signle shot of 360s taken with 071C @860mm F5.6
A test to see how much detail of this Helix could be captured with a cooled OSC at my observation site in YL with a Bortle scale close to 9.
Signle shot of 360s taken with 071C @860mm F5.6
Re: DSO 遺照集 -- Ring nebula
134. Ring nebula
Taken with Vixen SD115S + HD flattener + 1600MM in YL last night @908mm F7.9
RGB = 6x210s : 6x180s : 6x180s @-5C, autoguided with Vixen SXD2 mount
A test to see if color data obtained with a mono camera is a bit better than my DSLR of 100Da
Taken with Vixen SD115S + HD flattener + 1600MM in YL last night @908mm F7.9
RGB = 6x210s : 6x180s : 6x180s @-5C, autoguided with Vixen SXD2 mount
A test to see if color data obtained with a mono camera is a bit better than my DSLR of 100Da
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