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The Starboosa Smartphone Telescope Adapter is a universal, lightweight mount designed to connect smartphones (55-85mm wide) to telescopes, microscopes, binoculars, and more with eyepieces between 22-44mm. Crafted from durable PA plastic with EVA padding, it ensures secure, scratch-free attachment and stable imaging. Compatible with a wide range of popular phone models, it offers manual focus control and easy setup backed by responsive customer support.














| ASIN | B0856V8V28 |
| Aperture Diameter | 44 Millimetres |
| Best Sellers Rank | 19,195 in Mobile Phone Accessories |
| Brand | starboosa |
| Brand Name | starboosa |
| Coating | Starboosa (Brand known for its StarBright XLT technology) |
| Compatible Devices | Smartphone, iPhone 6, 6 Plus, 5, 5s, 7, 7 8, 8 X, Samsung Galaxy S9, S8, S7, S6, Note 9, HTC, LG, Other Brands |
| Customer Reviews | 3.6 out of 5 stars 407 Reviews |
| Eye Piece Lens Description | Barlow ,Huygens, Kellner ,Plossl, Super Plossl |
| Eye piece lens description | Barlow ,Huygens, Kellner ,Plossl, Super Plossl |
| Focus Type | Manual Focus |
| Focus type | Manual Focus |
| Item Dimensions D x W x H | 16D x 8W x 6H centimetres |
| Item Weight | 75 Grams |
| Manufacturer | starboosa |
| Manufacturer Part Number | SB-021B |
| Model Name | SB-021B |
| Model name | SB-021B |
| Mount | Universal fitment |
| Power Source | Manual Operation |
| Product Features | Universal smartphone adapter for telescopes and other optical devices |
| Product dimensions | 16D x 8W x 6H centimetres |
| Telescope mount description | Universal fitment |
| UPC | 753326757096 |
| Unit Count | 1.0 count |
T**M
Great, affordable and easy to use
At first it looked flimsy, however once it was all attached, and in the right place, this adaptor worked very well allowing me to get easy footage of long range archery. The adjustability is smooth and easy, with it have a wide range of compatability with different phones. Great value for money.
W**1
Gave good results after a bit of adjusting ?
A**R
Smart phone camera to telescope adaptor
Good item. Works well.
A**R
Great product
Exactly what it's said it is with an addition of the shim for smaller eye pots it's great
R**H
Does not fit
Standard spotting scope yet this will not fit over lens. Thrown in the rubbish bin. Do not buy this cheap tat.
A**R
Dosent fit
I have a a spotting scope and a samsung flip 5 phone I can't get it to fit
P**E
Works fine
Easy to set up and works as expected
B**S
Phone holder for telescope
It works but not as good as i though it would and I use a samzung phone
C**L
It works great
I got this for a old telescope that's been sitting around. Works great.
B**A
Good for the price
Not perfect, but good enough. Not recommended if your phone has a button on the back and no other way to open the screen. I'm using my retired LG V20 with this frame, and it would be a royal pain if I needed to use the button for fingerprint access. But because it no longer has a SIM card, I just leave the phone unlocked, and I can tap the front screen to turn on and off the display. Side pinches are not very tall, and I had to remove my new Samsung A54 from its case for it to fit in the holder. I also had to adjust the pinch arms so they gripped near the bottom of the phone, so they didn't press the side buttons. But the pinch spring is definitely strong enough you don't need to worry about it dropping your phone. And the tightening knob for the phone positioning should probably be bigger. It's a little small and difficult to tighten when you get the phone and adapter setup and aligned on your eyepiece. The knob for tightening around the eyepiece is fine.
J**D
It's cheaper than most... may work for you.
It's cheaper than most... may work for you. My Iphone 14 barely fits in it. It is difficult to line it up with the view finder on my spotting scope. If I try this again I would spend a bit more and try to find something more user friendly.
K**S
Avoid
It fell apart first use, springs shot out and the housing fell apart.. the lens's holder sleeve fell off and would not stay attached…
D**N
Easy to use
Nice
Trustpilot
3 days ago
3 weeks ago