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Telescopes > TS Optics > TS Optics Apochromatic refractor AP 70/474 OTA
Product no.: 61436

Apochromatic refractor AP 70/474 OTA

RRP: $ 870.00 Our price:
$ 770.00 incl. VAT, plus shipping costs
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Product description

Questo rifrattore apocromatico è uno dei maggiormente apprezzati in commercio, con un diametro pari a 71mm e una focale di 447mm, ottiene un rapporto focale pari a F/6.3.

Lo schema ottico di questo strumento è costituito da un Petzval da 4 elementi ottici in FPL53 e possiede un focheggiatore da 2.5" dotato di sistema pignone e cremagliera con riduzione micrometrica 1:10 e rotatore a 360° integrato.

Il focheggiatore può reggere carichi molto pesanti, fino ad un massimo di 4kg, una volta bloccato con la vite in dotazione, non c'è preoccupazione che questo possa slittare.

Il campo corretto ed illuminato è molto grande, pari ad una diagonale da 44mm di lunghezza, fino al FULL FRAME!

Con questo strumento sono fortemente consigliate camere CMOS raffreddate, in quanto molto prestanti su focali medio corte (ASI1600, ASI071, ASI094, ASI294,ASI183)

Il 71SDQ rimane un'ottima alternativa a strumenti come il Takahashi FS60 oppure il classico Pentax 75 SDHF; l'ottima correzione cromatica rende possibile l'utilizzo anche in visuale per un ingrandimento da 10x a 200x.

TS Optics is a brand of Teleskop-Service.

It not only matters which telescope you buy but also where you buy it. Our additional services:

  • We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
  • We provide a copy of the 80-page "Telescope ABC" beginners handbook with every telescope.

Specifications

Optics


Type
Refractor
Type of build
Apochromat
Aperture (mm)
70
Focal length (mm)
474
Aperture ratio (f/)
6,8
Resolving capacity
1,97
Limit value (mag)
11
Light gathering capacity
100
Max. useful magnification
140
Tube weight (kg)
3,2
Carrying length (mm)
450
Coating
multiple
Tube construction
Full tube
lens design
Doublet
Fully Corrected Field (mm)
32

Focuser


Type of build
Gear rack
Connection ( to eyepiece)
2
Connecting threaded socket (camera-side)
M54
Backfocus (mm)
135
Free aperture (mm)
64
Ring clamp
yes
Gear reduction
1:10 fine focusing
Adjustment range (mm)
70

Mount


Type of build
OTA
Mounting type
no mount

Included accessories


Finder scope
no
Tube clamps
yes
Prism rail
Vixen-Style
Dew Shield
yes
Corrector
integrated
Transport cases
yes
Eyepiece adaptor
1,25" - 2"

Area of application


Astrophotography
yes (very good)
Moon & Planets
yes
Nature Observation
no
Nebulae & galaxies
yes
Sun
no (Only with appropriate Sun filter)

Recommended for


Beginners
no
Advanced
yes
Observatories
no

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*All prices include VAT plus shipping costs.

TS Optics Apochromatic refractor AP 70/474 OTA
Transport cases
TS Optics Apochromatic refractor AP 70/474 OTA
Example

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