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.


  • Spec­i­fi­ca­tions
  • Pack­ag­ing and equip­ment
  • Appear­ance and design fea­tures
  • Exploita­tion
  • Con­clu­sion


  • 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!

От Yara

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