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Venus, March 25, 2023

2023-03-26
astrophotography, Venus
Venus, March 25, 2023, 17:35

Venus, March 25, 2023, 17:35

Equipment:
-telescope Celestron NexStar 8 SE
-Barlow lens cell NPZ 2x
-atmospheric dispersion corrector ZWO ADC
-ZWO IR-cut filter
-camera ZWO 183MC.
Stacking of 500 frames from 14665 in Autostakkert, wavelets in Registax 6.

Wavelet settings in Registax

Wavelet settings in Registax

Venus in visible and UV light, March 25, 2023, 17:35, 17:43

Venus in visible and UV light, March 25, 2023, 17:35, 17:43

Equipment:
-telescope Celestron NexStar 8 SE
-Barlow lens cell NPZ 2x
-atmospheric dispersion corrector ZWO ADC
-camera ZWO 183MC (green channel from previous image) + ZWO IR-cut filter
-camera QHY5III178m + Antlia CaK 3nm 393.3nm.
Stacking of 1000 frames, wavelets in Registax 6.
False colors: G, G + UV (50%), UV.

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The Sun, March 23, 2023

2023-03-23
astrophotography, Sun
The Sun, March 23, 2023, 11:10

The Sun, March 23, 2023, 11:10

Equipment:
-Celestron 102 SLT telescope (optical tube)
-Celestron Nexstar SE mount
-Lacerta Herschel prism
-ND3 filter
-Baader Solar Continuum filter
–ZWO ASI 183MC camera
Stacking of 250 frames.

The Sun, March 23, 2023, 11:25

The Sun, March 23, 2023, 11:25

Equipment:
-Coronado PST H-alpha 40 mm telescope
-Sky-Watcher AZ-GTi mount
-Deepsky IR-cut filter
-QHY5III178m camera.
Stacking of 100 frames.

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SVBONY SV216 1.25″ 2x Barlow lens review

2023-03-18
svbony, reviews, equipment

I received for test Barlow lens Svbony SV216. The Barlow lens is an optical accessory that allows you to increase the focal length of the telescope several times. It can be used both for visual observations and for astrophotography. The manufacturer claims consistent 2x magnification, fully multi-coated 4-element construction, blackened lens ends, a flat field of view, and a 1.25″ fit with M28.5 x 0.6 filter threads.

SVBONY SV216 1.25

SVBONY SV216 1.25″ 2x Barlow lens

However, constant magnification implies another important property – telecentricity, that is, this Barlow lens does not change the slope of the rays coming from the lens. The telecentric Barlow lens cannot be “overclocked” by an additional sleeve, does not increase eyepiece eye relief, introduces less distortion and works better with wide-angle eyepieces.

Specs

Brand SVBONY
Model SV216
Barrel Size 1.25 inch
Magnification Factor 2x
Number of Lens Elements 4- Elements
Lens Coatings Fully multicoated
Outside Length of Upper Body 2.34inch / 59.5mm
Insertion Depth 1.55inch /39.5mm
Max Diameter Excluding Thumbscrew 1.73inch / 44mm
Net Weight 7.72oz / 219g
Filter Threads M28.5×0.6
Barrel Type Straight Barrel
Barrel Material Stainless Steel
Number of Thumbscrew 3PCS
Thumbscrew Thread Specification M3x10
Compression Band/Ring in Eyepiece Holder Yes

 

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The Sun, March 13, 2023

2023-03-13
astrophotography, Sun
The Sun, March 13, 2023, 15:21

The Sun, March 13, 2023, 15:21

Equipment:
-Orion Observer 80 ST EQ telescope (OTA)
-Sky-Watcher AZ-GTi mount
-Lacerta Herschel prism
-Baader Solar Continuum filter
-ND3 filter
-QHY5III178m camera.
Stacking of 250 frames.

The Sun, March 13, 2023, 15:23

The Sun, March 13, 2023, 15:23

Equipment:
-Orion Observer 80 ST EQ telescope (OTA)
-Sky-Watcher AZ-GTi mount
-Lacerta Herschel prism
-Antlia CaK 3nm 393.3nm filter
-ND96-09 filter
-QHY5III178m camera.
Stacking of 250 frames.

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