Celestron 81055 NexYZ 3-Axis Universal Smartphone Adapter, Patented Design - Works with Telescopes, Spotting Scopes, Binoculars, Monoculars and Microscopes, Black

A very versatile, well engineered, very adjustable holder. Bigger and heavier than you may think when ordering. Both my big binoculars and SLR camera are used with tripods, so weight is not an issue for me.

This is a great device. Yes it is a bit tricky to set up, but one you have it on it does make it very easy to get better pictures than you would just hand holding. Biggest issue is as you move it about to line it up, the iPhone keeps switching lenses, but you can get there. Attached are a couple of pictures. On is lemon cells and the other is grains of salt. The attachment is flexible and fits ok on the Apex, although as a binocular microscope the second eyepiece does make it slightly snug. The plastic adaptor fits well and the phone felt secure. Alignment movement feels pretty good, although a bit rougher than I expected. Overall I think it is well made and good quality..

Very sturdy and holds well, once you have set it up a few times, it becomes really easy to use. I did adjust the slides to achieve a smoother action and placed a card shim under the rubber back to get a better alignment, but I'm fussy and you might not need or want to. Only downside, the additional weight of mount and phone unbalanced the scope mount but easy enough to account for. The pictures are of objects over 5 miles away

Great product. Holds phone in place and easy to adjust. Item is durable and well designed. Moderate weight so gotta be a bit careful on telescope not to tilt it once phone in place.

All the criticisms of previous viewers are correct. I'll add a few other observations. But first - it's not bad. In many ways it's a great idea and has great features. The x,y,z movements are solid; excellent rack and pinion. And it's nice to have the phone supported at the bottom as well as the sides - an uncommon feature and surely a necessity. But this is quite an expensive device, considering that simple mechanical equivalent attachments are £10-15, so I'd expect more, especially from Celestron. There are the following flaws: 1. The eyepiece grip has several flaws. It's designed for device eyepieces which are smooth or flat (cylindrical) in the axial direction. For eyepieces which may have a protruding step part-way along their axis, like my binoculars, this means that the clamp is not fully engaged along the full axial extent of its design contact. Combined with the foam material chosen for the clamp contact surface, this has lead to permanent indentation of the foam material, within a few hours of operation. This means that future use will simply require further pressure to maintain a good grip, leading to further compression of the foam .... Some form of adapter would be nice, especially for the price. The provided split corrugation wasn't a good enough design for my situation. 2. The marketing does not make it explicitly clear that the primary market is for phones with the camera lens in the corner of the smartphone body. This is an issue for e.g. Galaxy Note 9 etc with the phone in the mid-width position, since the z-axis adjustment and the design of the clamp axis can cause interference between the phone and the joint/bracket of the eye-piece mount. Not a major issue, but in conjunction with the axial dimension of the eyepiece grip, the axial dimension of the eyepiece grip joint, this can make getting the axial position of the camera a bit tricky, especially if it needs to be closer to the binocular eyepiece. 3. For binoculars it's very much a right-eyepiece device. If the eyepiece is a bit loose, then under certain orientations, the combined weight of the Nexyz and phone can twist the binocular eyepiece thus adjusting the focus. Bit of a nuisance. 4. The material of the rack and pinions was good enough and the assembly and operation of them were fine. Quite impressed. However, the rest of the structural material is a semi-hard plastic which is actually quite flexible. This means that the assembly is flexible under load (see point 5), and also that the manufactured assembly is not quite correct. It is quite clear from inspection that the component which holds the phone is misaligned with the plane of the eyepiece, and the axis of the rack-and-pinion to which it is attached, and is also slightly twisted across its width. For the price, and given the design effort, I expected the material choice and manufacturing / assembly execution to be better. 5. There is clearly quite a bit of flexibility in the structure. Several millimetres of clearance between the eyepiece and the camera support plate can be take up with the slightest of pressure, and this flexibility shows up when the camera is loaded, and the binoculars are tilted. The strength of the rack and pinion adjustment (in all three axis) combined with the weak grip of the eyepiece mean that in-situ adjustment can be fiddly. The structural strength of the combined assembly is inherently weak at the rack and pinions - don't know what they could do to design that out... 6. Protruding screws in several places. Will they fall out? For the price, you'd think they'd throw in a couple of cheap jeweller's screwdrivers and some instructions on how to fine tune and adjust the assembly. Would I buy it again? Probably not. Do I wish I'd read the other reviews before purchasing? Yip. Will I return it? No, it'll do. And I may even dismantle it, and modify it, to overcome some of the above defects. Maybe. Some rainy Sunday afternoon. Or maybe I'll stick to my Gosky mount. And by a telescope with a T-mount for my DSLR.

Any observer with optics, preferably, on a stand will like this. Not cheap, but very well engineered. Robust. And if any axis feels a little slack, or too tight, there are small screws to adjust. Ensure your mount can take the weight of phone. As an astronomer, I found it helpful to attach to an eyepiece in daylight. The Z axis (up and down to the eyepiece), was easier than in the dark. Hope this helps.

Tried a cheaper model first and was not happy - as I use it on a £400 spotting scope it made sense to pay the extra . The securing mechanism is good and it is easily adjustable in x and y planes- you need a sturdy tripod as it adds weight ( including phone) to the rear of the scope. One thing to consider is your phone camera- I tried with a 3 lens IPhone 13 Pro and had difficulty aligning to the scope as the camera software can switch lenses- went to an older iPhone XR with 1 lens and no problem.

I could secure my phone over the eyepiece of my telescope without breaking any sweat.

Utilisé sur Jumelle astro (sur trépieds) et télescope (sur des oculaires 1,25" via l'un des deux adaptateurs complémentaires inclus) avec un iPhone 13 Pro, je dois reconnaître que si cela demande plus de manipulations qu'avec un adaptateur T2 pour appareil photo (qu'il suffit de visser), cela n'en demeure pas moins génial. Les optiques sur smartphones sont de petit diamètre, et selon le modèle, elles ne sont pas placées au même endroit, et pire maintenant, les smartphones en ont plusieurs. Cela a pour conséquence de demander un peu de réglage préalable: - Choisir l'objectif du smartphone à aligner avec l'oculaire (quand il y en a plusieurs) - Trouver le réglage du logiciel de photo du smartphone permettant d'utiliser l'objectif en question - Aligner précisément (dans les 3 directions) l'objectif et l'oculaire Cela implique de passer un peu de temps la première fois en pointant sur un objet fixe et suffisamment lumineux (pour ne pas en plus galérer avec la mise au point logicielle du smartphone). Ensuite, il devient possible de faire de très belles photos souvenirs. Je n'ai pas encore regardé s'il est possible de procéder comme avec une caméra astro pour faire de l'empilement, mais déjà, pour quelques euros, on est en capacité de faire facilement des photos lunaires, planétaires, d'observation en journée, etc. Je n'ai pas encore eu de ciel suffisamment clair pour essayer sur des amas stellaires. Je pense que pour une utilisation avec un smartphone (solution "cheap" donc), c'est déjà très très bien ! J'ai apprécié la qualité générale de l'objet (pas de jeux sur les éléments mobiles, facilité et précision des réglages, possibilité de ne pas dérégler entre 2 utilisations. Franchement, c'est top !

I have used this to take some great photos. It holds firmly without any wobble and is super adjustable. Attached are a couple of images I took with my phone thanks to this adapter keeping it in the sweet spot over my telescope's eyepiece. Highly recommended.

望遠鏡に装着。3次元微調整で満足。 微調整ネジが少し硬い。

I think this is a bit of a gimmick. It doesn't work well for night sky pictures but day time or bird watching stuff...would be great.