Today’s review is dedicated to another optical device from SVBONY. The SV28 model has adjustable magnification from 25x to 75x and a solid 70mm glass lens diameter. The tube, despite the low price, comes with a tripod and a smartphone holder for high-quality photos.
- Packaging and equipment
- Appearance and design features
- Model: SV28 25–75x70 (F9308B)
- Magnification: 20x-75x
- Lens Diameter: 70mm
- Eyepiece diameter: 15mm
- Focal length: 300mm
- Prism type: Porro, BaK4
- Prism Coating: FMC
- Nitrogen filling: yes
- Focus system: single
- Eye relief: 16–14mm
- Exit pupil diameter: 4–1mm
- Minimum focusing distance: 8m
- Field of view at a distance of 1000 m: 33–16 m
- Water protection: IP65
- Hood: yes
- Tripod: yes, 1/4″ thread
- Dimensions: 360x90x92 mm
- Weight: 0.9 kg.
Packaging and equipment
Fast courier delivery from a warehouse in Russia. The spotting scope has a simple cardboard package with a print of the product and information about the manufacturer, and inside a zippered bag with a carrying strap. Bag size: 410x150x110 mm.
Inside the nylon bag there is a delivery set SV28 25–75x70:
- Spotting Scope SV28
- Folding tripod
- User manual (without Russian language)
- Cloth for cleaning optics
- Lens protection
- Eyepiece protection
The metal folding tripod 24 cm high is equipped with a convenient remote handle for turning the “head”. Vertical and horizontal adjustment, locking by turning the knob. The tripod is stable, fits this model, and does not slip, thanks to the rubber heels on the legs.
Bracket for a smartphone will be considered separately. A necessary thing, it will allow you to accurately combine the optical cameras of a smartphone and an optical tube, thereby obtaining high-quality photos through the eyepiece.
The bracket allows you to clamp devices with a width of 5.2 to 10 cm, and is mounted on a cylindrical eyepiece. There are rubber and neoprene pads so as not to damage the smartphone. Lots of adjustments to make sure you get it right.
Appearance and design features
This model F9308B is the eldest in this SV28 line, there are also models with a lens diameter of 50 and 60 mm.
The optical axes of the objective and the eyepiece converge at an angle of 45 degrees, a porro-type prism is used. The case of the optical device is made of matte soft-touch plastic, IP65 protection against water splashes is declared. The body color is dark green, familiar to Svbony. Weight only F9308B 804 g, tripod 245 g.
At the bottom of the case there is a platform with a rubber pad and a 1/4″ threaded sleeve for a tripod, it is not easy to look into such a telescope from your hands, the high magnification affects.
Adjustment of focusing of an optical tube, is executed by one handle. The range is large. When adjusting, the dimensions of the optical device do not change.
The lens of the model is equipped with a multilayer lens coating with a greenish tint. The outer diameter of the case is 92 mm, and the visible glass is 72 mm. For observation with backlight there is a retractable plastic hood.
Eyepiece (outer diameter 40 mm) with continuously adjustable magnification and soft rubber eyecup. The magnification is marked (x25-50–75) on the case.
The eyepiece and lens protections are quite simple, plastic:
Size comparison with the more expensive Svbony SV411 20–60X80 tube (with dual focus system):
Mounted bracket for a smartphone on the eyepiece. With it, photos through the eyepiece are sharper and with outlined borders, below you can see the difference. True, sometimes the photo will have to be rotated.
The smooth magnification of the x25-75 device is clear, but at high magnification the picture shifts, the boundaries of the field of view are already blurred. You need to constantly tighten the focus. The optimal magnification for comfortable work with the SV28 is x25 magnification.
Examples of device operation day and night (at different magnifications).
Svbony SV28 25–75x70 is a good budget optical device. The scope of application is very wide: observation in nature, and the nearest bodies of the solar system, and most importantly, perhaps, the control of the results of shooting at targets, zeroing in optical sights and archery.
Buy here (complete with smartphone holder). For this lot, there is a fast courier delivery from a warehouse in the Russian Federation.
Thank you for your attention. Enjoy the shopping!