The Takahashi FS-60CB is a fluorite doublet apochromat refractor. [Image Credit: Takahashi].
Specifications
Aperture: Â 2.4 in. [60mm]
Focal Length: Â 14.0 in. [355mm]
Focal Ratio @ Prime Focus: Â f/5.9
Prime Focus Photographic Field:  5.0°
Focal Ratio w/Reducer: Â f/4.4
Photographic Field w/Reducer:  7.0°
Limiting Magnitude: Â ~ 10.9
Resolving Power: Â 2.2 arc seconds
Lowest Useful Magnification: Â 8x
Highest Useful Magnification: Â 120x
Tube Diameter: Â 3.1 in. [80mm]
Tube Length: Â 14 in. [359mm]
Weight: Â 2.2 lb. [1.3 kg]
Field of View and Magnification
TeleVue 31mm Nagler: 6.7° @ 11x
TeleVue 22mm Nagler: 5.0° @ 16x
TeleVue 17mm Nagler: 3.9° @ 21x
TeleVue 13mm Ethos:  3.6° @ 27x
TeleVue 10mm Ethos:  2.9° @ 36x
TeleVue 08mm Ethos:  2.2° @ 44x
TeleVue 06mm Ethos:  1.7° @ 59x
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Introduction
For a while now I've been re-evaluating my Takahashi FCT-76, trying to figure out what niche it fills in my observing life. As it turns out the answer is quite simple: wide-field viewing. Â
Now that may not seem like a revelation to you, but to the owner of this fine telescope, it definitely was. Why? My guess is that I've been a strong adherent of apomania - those who subscribe to the claim that the end all of modern telescope design is the apochromat refractor.
Okay, that may be a bit of a stretch but there's also some truth to it. Â It's hard to deny that a small apochromat refractor provides beautiful panoramic views, and that the color correction is top-notch, but what about seeing objects brightly besides the Moon and planets? This question can partly be answered in the context of where one observes from; in other words, your location greatly dictates your perception of the quality and utility of the optical instruments you own.
My thoughts on improving observing sessions now revolves around owning at least two or three telescopes instead of one: A mid-to-large sized deep-sky scope and a small wide-field scope. The mid-to-large sized deep-sky scope will either be an 8" Maksutov-Newtonian or a 14.5" Dobsonian, and the small wide-field scope will be the Takahashi FS-60CB. A third telescope possibility would be the FSQ-85ED for quick and easy set-up, observing, and breakdown.
I bought the FS-60CB to achieve the widest of wide-field apo views that the FCT-76 couldn't.
Design
On its own, the FS-60CB would be fine instrument with only the standard 1.25" visual accessories; but with the addition of upgradeable products, the scope's overall performance is greatly enhanced - the most profound improvement being the ability to use 2" eyepieces. The Takahashi 2" Ocular Adapter allows 2" eyepieces and diagonals to be attached to the FS-60CB. With a TeleVue 31mm Nagler Type 5 [which produces over 6.7° @ 11x magnification] "wide-field surfing" is truly amazing.
Are there any design drawbacks?  It's really hard to find fault with the FS-60CB, especially when you consider the specific purpose and limited utility of owning one. If you buy it, you probably do so for a particular reason:  wide-field and/or solar observing, as a guidescope, or for imaging.
Modifications
You can substitute the Takahashi 2" Ocular Adapter for the Baader Planetarium 2" Clicklock Eyepiece Clamp.  Designed for Takahashi 56mm threaded couplings, the 2" Clicklock Eyepiece Clamp has an innovative rotating locking collar that holds eyepieces firmly without marring their barrels from thumbscrews or leaving grease impressions from traditional brass locking rings.
The FS-60CB can also be outfitted with a Camera Angle Adjuster [CAA-S] for use with visual and imaging accessories.
A Pelican 1500 Protector Case will provide the proper protection for road and air travel.
Imaging Accessories
Imaging can be done when using the FS-60CB's dedicated 0.72x Reducer, delivering a flat 7.0° field at a fast f/4.26.
Observing
Having used this telescope for several years, I've been very impressed with the views so far.  It looks like the collimation was a little better on the FS-60CB than my FCT-76, so I had the FCT-76 sent to Takahashi America for servicing including a lens cleaning [it doesn't hurt to have a professional look over your telescope every now and then]. The color correction is good for a doublet and much better than a TeleVue Pronto. But since this is a wide-field scope, there isn't much need for perfect correction on bright stars. Contrast is good - again, better than the Pronto due to the OTA's single baffle [the Pronto has none!].
Wide-field views of Melotte 111 [Coma Berenices Star Cluster] and Messier 44 [Beehive Star Cluster] through the 31mm Nagler 5 were great. The outermost stars in Mel 111 are almost completely taken in, and M 44 is surrounded by the star triangle of Delta, Gamma, and Eta Cancri with a lot of fov to spare.
It's possible to frame both Collinder 70 [the star field the makes up Orion's Belt] and Messier 42 [The Orion Nebula] in the same fov, whose stars create a beautiful sugary effect at low power.
All of Melotte 20 [Hyades Star Cluster] can be seen at once.
The four stars that make up the stinger in Scorpius were seen in the same field. M 6 / M 7 and M 10 / M 12 combos look amazing as well.
Under the dark skies of West Texas, the wide-field sweeps of the Summer Milky Way were phenomenal. Outstanding!
Alternatives
I can't think of another comparable high-quality telescope of similar aperture that can do what the FS-60CB does: provide excellent color correction, offer ultra wide-field views, and incredible compactness for travel. In my opinion, this is the ultimate wide-field finderscope.
Priced ~ $1,040 USD.