Qhycc QHY5III174C, Руководство пользователя

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QHY5III Series
3.6 Some computer
’s front USB port is not so good for high speed transfer (The reason is
it connected to mainboard by a cable and which has no good signal integrity). If you
found the camera always hangs on front USB port. You can try the USB port on backside
of the computer (which is connect to chipset directly on the mainboard).
4.What
’s the interface to telescope? How to use C/CS lens on QHY5III
Because QHY5III camera has 1.25inch eyepiece style design. So it can be intert into the
1.25inch eyepiece tube. No need extra adapter.
QHY5III has the CS thread front part. It can connect with CS lens. The back focal length
is 11mm to 11.5mm. Please note this value is a little less than the 12.5mm standard CS
back focal length. But you can use the 1.25inch spacer to get it to 12.5mm. The reason
that does not design to 12.5mm is to avoid the back focal length is longer than 12.5mm
lens and you will no any other method to get the infinine on the imager.
You need select the C or CS lens by the CMOS sensor size. Normally speaking the CS
lens only covers 1/3inch sensor size. So QHY5III178 and QHY5III174 can only use the C
lens. QHY5III174 may need 1inch C lens. When using the C lens, the backfocal length is
17.5mm, you need buy the C-CS entender to extend 5mm back focal length.
5.How to clean the CMOS sensor and the optic windows of the camera
If you found there is dust on the cmos sensor. You can screw off the front part of the
QHY5III. The SONY CMOS sensor is clear glass and it is no any coating, so that it is
quite easy to clean it. You can use the tools that clean the DSLR or just a lens paper to
clean it.
The optic window is the IR cut coating or AR coating. So you need to be careful when
cleaning it. You can also use the DSLR clean tools or the lens paper. Don
’t use big force
to clean it. The coating is not so hard and it is easy to get scratch when you use big force
on it.
6. Does QHY5III working under FireCapture?
Yes. The lastest FireCapture supports QHY5III already. Please go to FireCapture
website to download it.