SV555 Astrograph APO Telescope - SV260 Multi-bandpass Filter Set for Deep-sky and Comet Photography
86 | ReviewsKey Features
This SV555 photography bundle includes:
Lemmon A6 18 ottobre 2025
- Astrograph Telescope: Svbony SV555
- Multi-Bandpass: Svbony SV260
C/2025 A6 (Lemmon) is a non-periodic comet discovered by the Mount Lemmon Survey in images obtained on 3 January 2025. It has an inbound orbital period of about 1,350 years and will pass perihelion on 8 November 2025 when it will be 0.53 AU (79 million km; 49 million mi) from the Sun. This perihelion passage will reduce the orbital period to about 1,150 years.
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| Brand | SVBONY |
| Model | SV555 |
| Aperture | 54mm |
| Net Weight | 2450g (excluding accessories) |
| Focal Length | 243mm |
| Lens Coating | Fully Multi Coated |
| Focuser | Helical |
| Image Circle | Φ 44mm (Full Frame) |
| Lockable 360º Rotator | Yes |
| Objective Type | Petzval Design（5 Elements in 3 Groups) |
| Optic Coated | FMC |
| Mount Type | Dovetail Plate |
| Dovetail Plate Length | 184mm |
| Dovetail Plate Width | 42mm |
| Lens Barrel Circumference | 293mm |
| Front Filter Thread | M72 |
| Back-end connection | M48x0.75 male thread |
| Length of Screws | 2 x M6 short screws, length 10mm 2 x M6 long screws, length 55mm 2 x M4 screws, length 8mm 4 x M5 screws, length 12mm |
| Focal Ratio | f/4.5-f/22 |
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Brand |
SVBONY |
|
Model |
SV260 |
|
Name |
Multi-Broadband Filter |
|
Size |
2-inch |
|
Substrate Thickness |
2mm |
|
Clear Aperture |
44mm |
|
Wavelength Range |
300-1000nm |
|
Blocking |
>OD4@350-400nm; >OD2@Hg 589nm; >OD2@Hg 435.8nm; >OD2@Na 589.6nm; >OD1@Hg 546.1nm; >OD2@Na.615.4nm; >OD3@Hg 577nm; >OD2@Na.616.1nm; >OD3@Hg 578.1nm; >OD4@720-1100nm |
|
Peak Transmittance |
90% |
|
Surface Quality |
60/40 |
|
Surface Parallelism |
1/2λ |
|
Thread |
M48x0.75 |
|
Single Thread |
Yes |
|
Net Weight |
12.5g / 0.44oz /0.027lb |
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Feature
- 1.5-band filter captures light across a broader spectrum; Accurately reproduces the true colors of celestial objects;
2.Multi-Broadband filter properly designed for starfield shooting and deep sky photography, enhance stars and celestial bodies details; making deep sky observations clearer;
3.Over 90% peak transmittance;reduces light loss, boasts an SII-OIII-SII band average transmittance of over 85%; Enhances contrast between the target object and the background;
4.300-1000nm wavelength working range; multi-bandpass filter effectively combats light pollution; providing a broader coverage area;
5.Max OD4 cut-off depth; astrophotography filters effectively block out unnecessary light; and provide stronger light pollution suppression.
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