Up-down, left-right, and nothing to align · review
A red CNC-machined alt-azimuth base for iOptron's SkyTracker Pro, SkyGuider Pro and SkyHunter, with 0° to 90° of latitude, ±5° of azimuth, a bubble level and a Vixen-type dovetail clamp.
A small camera tracker such as iOptron’s SkyTracker Pro or SkyGuider Pro has to be tilted so its axis points at the celestial pole. On a photo tripod that is done with the ball head or by moving the legs, both slow and imprecise.
This base sits between tripod and tracker and does the tilting with dedicated adjustments: latitude from 0° to 90°, azimuth ±5°, with a bubble level built in.
The polar axis is tilted to the observer’s latitude: about 25° in Miami, 40° in Denver, 48° in Seattle. Zero to ninety covers every site on Earth, from the equator to the pole.
iOptron’s own Adjustable AZ Base stops at 65°. For the contiguous United States that is already enough, which makes the extra range here a feature for travelers to the tropics or the far north.
The body is CNC-machined metal rather than cast, anodized red. Machined parts hold their adjustments without the slop a casting can develop, which matters on a part whose whole job is to stay where it was set.
The top is a Φ80 mm (3.15 in) base with a Vixen-type dovetail clamp. The bar is not included.
Underneath it takes a 3/8 in tripod screw directly; a 1/4 in screw needs an optional 3/8 to 1/4 in converter. The listing also says it can serve as a wedge to tilt a small alt-azimuth mount into equatorial mode, possibly with a dovetail plate.
No payload figure. The maker names the trackers it is built for, which is a useful guide, but not a number in pounds.
On November 7, 2026, Amazon.com listed it at about $268 from a third-party seller.
Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.
Prices quoted in this text were read on November 7, 2026. The live price is at the top of the page.
Same aisle, closest price — what the same spend else shows.
| Payload rating | Not published by the maker · Stated for iOptron SkyTracker Pro, SkyGuider Pro and SkyHunter, and other small camera mounts |
|---|---|
| Slow-motion control | Latitude adjustment 0° to 90° and azimuth adjustment ±5°, stated, for repositioning during polar alignment while the mount stays on the tripod |
| Clutch | Not published by the maker. |
| Tension | Not published by the maker. |
| Dovetail fitting | Φ80 mm (3.15 in) mounting base that accepts a Vixen-type dovetail bar, not included |
| Tripod construction | None: a base for a camera tripod · CNC-machined all-metal construction · Built-in bubble level · Attaches with 3/8 in or 1/4 in threads (a 3/8 to 1/4 in converter is optional and needed for 1/4 in) |
| Setup time | Not published by the maker. |
| Supplied optics | None: this is a base · Stated usable as a wedge to convert alt-azimuth to equatorial, a dovetail plate possibly needed |
| Amazon reference | B00CVEFNSC |
| EAN | 6943831501053 |
Only if you observe near the equator or very far north. A polar axis is tilted to your latitude: about 25° in Miami, 40° in Denver, 48° in Seattle, 61° in Anchorage. iOptron's cheaper Adjustable AZ Base stops at 65°, which covers the contiguous US and nearly all of Alaska's population; this one goes to 90°.
Pointing the axis at true north. Moving tripod legs to do it is slow and imprecise; the base turns ±5° with the tripod standing still, which is enough to finish a polar alignment by hand.
A Vixen-type dovetail bar to carry the tracker, and, if your tripod has a 1/4 in screw rather than 3/8 in, a 3/8 to 1/4 in converter. The listing names both as not included or optional.
This model is listed on Amazon.com, at ≈ $268 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 7, 2026.
Polar-aligning a small camera tracker at any latitude, on a photo tripod
Specifications: the manufacturer sheet for telescopes and observing optics and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
126:1 worm gear on both axes · ALT/AZ scales · die-cast aluminum head · 32 mm (1.26 in) aluminum legs
An all-metal alt-azimuth mount and tripod with 126:1 worm-gear slow motion on both axes and altitude and azimuth scales, sold for 130/650 reflectors and 90/1000 refractors.
Best for: A 130/650 reflector or 90/1000 refractor that needs geared movement and setting scales
32 to 45 in height · two slow-motion controls · slotted 1/4-20 plate · aluminum legs · no dovetail
A metal alt-azimuth head on two-section aluminum legs, with slow-motion controls on both axes and a slotted 1/4-20 plate for balancing a spotting scope, binocular or small telescope.
Best for: Giant binoculars or a spotting scope that needs geared movement rather than a dovetail
≈ $115
−30° to +65° latitude · ±5° azimuth · Φ80 mm (3.15 in) base · Vixen bar · built-in bubble level
An all-metal alt-azimuth base for iOptron's SkyTracker Pro and SkyGuider Pro, with −30° to 65° of latitude so the load can sit on either side, ±5° of azimuth and a bubble level.
Best for: Polar-aligning a small camera tracker without moving the tripod legs
≈ $91
