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APM LZOS ED 254mm F2250 APO Refractor Telescope Lens in Cell Only

APM LZOS ED 254mm F2250 APO Refractor Telescope Lens in Cell Only
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Price:  £45,799.00(Inc. 20% VAT)
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Product Code:  LZOS-254-2250-T
Manufacturer:  APM-LZOS


The 10" f/9 Apo is a true observatory telescope. Only one other manufacturer we know of, Takahashi, offer such a large Apo, but with a price multiple times higher. Despite its lower cost, the 10" offers the highest optical quality and color correction that is possible with today's lens materials and technology. New observing thresholds are crossed with an instrument of this size class and quality. You will see the planets with details as you can see only on the very best CCD images. As well, it's an excellent CCD image machine in its own right.

The tubes are made in Germany with non-compromising mechanical quality. The dew cap slides smoothly over the tube without producing any paint scratches. The focuser is a full 3.5" size. It rotates smoothly and with zero image shift. This zero shift rotation is very important when your camera has already achieved its best focus and you would like to rotate it to the best position. The finder bracket has a quick exchange style screw system and is mounted on the rotatable focuser, which allows focuser rotation to bring the finder scope to the most comfortable observing position. The focuser comes with large anodized focuser knobs and moves extremely smooth when racking. The focuser comes with a screwed on 3.5" / 2" adapter and an 2" / 1 1/4" clamp ring style adapter to protect your eyepieces and diagonals from scratches.

The tube rings are flat on both sides and offer five tapped 1/4 inch holes perpendicular to the tube line with one centered. The middle two hole's center to center spacing is  2.362" and outer two hole's spacing is 3.2" (Astro-Physics standard).

Since this Apo is also rather front heavy, when you place your order we offer the installation, to the rear inner portion of the tube, the proper weight for the balancing point of your choice for additional money. Please talk with us about this.

Delivered With Order:

  •     Optical tube
  •     3.5" Starlight focuser
  •     Set CNC tube rings
  •     2" extension 80 mm long
  •     2"/1.25" adapter
  •     50mm finder bracket
  •     2 Steel rails + 4 magnetic weights for eyepiece balancing

Type of telescope:
3-element SuperED Apo Refractor
 
Lens:
3-element SuperED
 
Color:
white
 
Tube material:
Kruppax 50, Aluminium
 
Aperture:
254 mm
 
Focal ratio:
f/8.8
 
Focal length:
2250 mm
 
Coating:
Multicoated
 
Resolution:
0.45"
 
Limit value:
13.8 mag
 
Max. useful visual power:
500 x
 
Backfokus:
220 mm
 
Focuser:
3.5" Starlight Feather Touch, 360¶ø rotatable
 
Connection to eyepiece:
3.5" to 2" and 2" to 1 1/4"
 
Viewfinder:
Bracket for 50 mm Viewfinder, Viewfinder optional
 
Tube diameter:
298 mm
 
Length during observing:
2680 mm
 
Transportation length:
2350 mm
 
Dewcap diameter:
336 mm
 
Width of tuberings:
2 tuberings each 30 mm
 
Threads in tuberings:
1/4" 5 x
 
Distance of threads:
centric, 2.362" and 3.2" distance
 
Tube weight:
99 lb incl. Tuberings
 
Included accessories:
Adapter 3.5"/2" and 2"/1 1/4" with Brass Clamp, 2" Extension 80 mm, Tubering Set, Certificate, Dustcaps, 2 Steelrails with 4 magnetic Balancing Weights
 
Case:
optional
 
Eyepiece adapter:

to 2" and 1.25"

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