The FirstLight 90mm f/5.6 Achro Refractor Alt-Az Telescopecombines portability and simplicity to provide new users with a complete observational platform for viewing the moon and planets. Outfitted with a 3.5" aperture, it can gather enough light to easily reveal lunar details, pick out Martian icecaps, and resolve Saturnian rings. Its sturdy rack-and-pinion focuser allows it to handle heavier or awkward loads such as DSLR imaging rigs, or the included smartphone adapter, and the 1.25" drawtube accepts the most common and popular sized eyepieces and accessories to allow easy add-ons as the user progresses in the hobby.

The OTA is carried by an easy-to-use "U"-style yoke alt-azimuth mount, and supporting the mount head and OTA is an adjustable-height aluminum tripod that comes with a center tray to add stability and offer a convenient place to hold accessories such as eyepieces, filters, and adapters. To ensure users can start viewing right out of the box, Explore Scientific includes two eyepieces that produce high and moderate magnifications, a 90° erect-image diagonal so the scope can also be used as a conventional terrestrial spotting scope, and a red dot finder.

90mm Achromatic Refractor    500mm Focal Length, f/5.6 Focal Ratio    Fully Multi-Coated Optics    1.25" Rack-and-Pinion Focuser    9mm and 25mm Eyepieces    90° Erect-Image Diagonal    Universal Smartphone Adapter    Manual Alt-Az Yoke Mount    Adjustable Aluminum Tripod with Tray

• 90mm aperture
• f/5.6 focal ratio
• 500mm focal length
• Refractor-style optical design
• Achromatic lens configuration corrects for spherical and chromatic aberrations to reduce distortion, especially at the edges, and transmit accurate color rendition without halos or off-axis fringing
• Anti-reflection fully multi-coated optics improve light transmission through the optical path for improved color, clarity, and contrast
• Resolution (Dawes): 1.29 arcsec
• 1.25" drawtube accepts the most common size of eyepieces and accessories
• Sturdy rack-and-pinion focuser

Mount:
• Manual alt-azimuth
• "U"-style yoke design adds stability

Tripod:
• Aluminum alloy legs
• Adjustable height to accommodate a variety of users and observation positions
• Center tray adds stability and offers a place for accessories such as eyepieces and filters

Eyepiece:
• 1.25" diameter barrel
• 20mm focal length yields 25x magnification
• 9mm focal length produces 56x power

Diagonal:
• 1.25" snout and eyepiece holder
• 90° angle puts head at a comfortable viewing angle, especially when OTA is pointed at or near the zenith
• Integrated erect-image prism corrects image horizontally and vertically to the telescope to be used as a conventional spotting scope

Viewfinder:
• Red dot design
• Unlimited field of view makes alignment and star-hopping celestial navigation fast and easy
• Projects a red center aiming reticle that won't obscure small objects

Smartphone Adapter:
• 1.25" diameter barrel
• Capture photos or video through telescope to text, email, share, and post immediately

Related Questions and Answers

Q: 1. Can I use it with a mount to connect my Sony a7Rii?

A: Yes, it would be possible to connect that camera to this telescope. However, this telescope is not a great choice to use a 3 thousand dollar camera with. But technically, yes, you could connect this using item 93625 and you would also need a Sony T-Ring. Celestron only offers T-Rings for Canon and Nikon currently.

Q: 2. Will this work as a travel scope?

A: The image will be backwards so it is not recommend to use as a terrestrial scope. But you could adapt it using an erect image diagonal such as this Celestron: https://bhpho.to/2eMF3WV

Q: 3. Can you attach DSLR to this telescope?

A: Yes, you can with the proper T-Adapter and camera specific T-Ring.

Q: 4. what is its shipping box's packed weight ?

A: Unfortunately the question you're asking cannot be answered with our Q+A feature. Please contact our Sales directly for assistance.Email: Sales@bhphotovideo.com

Q: 5. As a beginner, are there any essential accessories I should consider for the base kit?

A: The AstroMaster Accessory Kit #94307 is recommended because it provides two additional 1.25" eyepieces, a 2X Barlow lens, three filters, and a cleaning cloth. This kit will enhance the performance of your Celestron AstroMaster, or most any other telescope. The moon filter will help block some moonlight so you will be able to see more lunar detail. The two color filters (Red and Blue) will highlight features on Mars, Jupiter, and Saturn.

Q: 6. How tall is the tripod ?

A: Sorry that information is not specified by Explore Scientific.

Q: 7. Can this be used for daytime scoping too?

A: Yes this Model can be used for Terrestrial use during the daytime, since it comes with a 90° Erect-Image Diagonal.

Q: 8. Which Barlow lenses would you recommend for this scope?

A: I would recommend this Celestron Omni 2x Barlow Lens: https://bhpho.to/2ZeywLX

Q: 9. Can this be mounted to an eq mount?

A: Unfortunately no. It uses a proprietary yoke mount so it cannot be used on a different mount such as an EQ.

Q: 10. Is chromatic aberration is a big problem for this Telescope?

A: The Inspire 100AZ telescope is an achromatic refractor design, so there will be a degree of chromatic aberration, but the views are highly acceptable.