Pentax 7mm SMC-XW Series 1.25 inch Eyepiece #70513

Description

Pentax 7mm SMC-XW Series 1.25" Wide Angle Eyepiece with 70 Degree Field of View
SKU: PX7XW
Mfr. Part: 70513
Description
Pentax 7mm SMC-XW Series 1.25" Wide Angle Eyepiece with 70 Degree Field of View
Features
70 Degree Field of View, Long eye relief
Fully Multi Coated
High Refraction, Low dispersion Lanthanum Glass elements deliver bright, high resolution images with minimal aberrations and distortions
JIS Class 4 Weather Proof Construction
Limited Lifetime warranty
Specifications
Lens Structure:
8 elements, 6 groups
Apparent Field of View:
70°
Eye Relief:
20mm
Field Stop Diameter:
8.8mm
Dimensions:
4.7 x 2.4 in.
Weight:
13.8 oz.
WHO WE ARE
Adorama is one of the nation's largest Photographic retail and mail order suppliers. For over 35 years we have been serving professionals as well as amateurs in the photographic, video, digital imaging and telescope fields. We offer the best combination of quality services, vast selection, knowledgeable staff, and competitive pricing.
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Hours of operation
Mon-Thurs:
9:00am - 6:00pm
Friday:
9:00am - 1:00pm
: 12pt;"> 9:00am - 6:00pm
Friday:
9:00am - 1:00pm Product Description
BSI CMOS Sensor; This telescope camera uses an extremely sensitive back-illuminated CMOS sensor; IMX290 sensor has very high QE and very low (0.7e-) read noise; which improved sensitivity in the visible-light and near infrared light regions for industrial applications
128MB DDR Buffer;The benefit of the image buffer is that the memory will cache the image and transfer it to the computer when the USB interface is not busy or being interrupted;and the frame will not be lost or corrupted
Any Area ROI Support;The SV305 astronomy camera has ROI function; A smaller region of interest (ROI) is read out from the sensor; leaving the image scale of the object being imaged unchanged; Allow arbitrary resolutions to be set
SV305 camera support Windows system; Linux system; Mac OS system; and Raspberry Pi system; Windows Driver 1.3.7 version; Support ASCOM driver; PHD2 Guiding Software; Not support Phone system
Long exposure can reach 30 minutes;high-speed;medium-speed;low-speed three output frame speeds are optional;matching different computer hardware to achieve a more suitable reception speed of the hardware. Meet the basic needs of astronomy enthusiasts for planetary photography
The SV305 has a built-in 128MB DDRII image buffer. The benefit of the image buffer is that the memory will cache the image and transfer it to the computer when the USB interface is not busy or being interrupted, and the frame will not be lost or corrupted. This buffer also allows a slower computer with USB 2.0 socket to capture every frame without loss even if the USB socket is occasionally busy with other peripherals. This buffer also makes it possible to run multiple cameras using one computer without USB transfer problems.
BSI CMOS Sensor IMX290LQR
The SV305 uses an extremely sensitive CMOS sensor, the Sony IMX290. This sensor has very high QE, and very low (0.7e-) read noise, which improve sensitivity in the visible-light and near infrared light regions for industrial applications.
High QE
The SV305 has a built-in 128MB DDRII image buffer. The benefit of the image buffer is that the memory will cache the image and transfer it to the computer when the USB interface is not busy or being interrupted, and the frame will not be lost or corrupted. This buffer also allows a slower computer with USB 2.0 socket to capture every frame without loss even if the USB socket is occasionally busy with other peripherals. This buffer also makes it possible to run multiple cameras using one computer without USB transfer problems.
Any Area ROI
A smaller region of interest (ROI) is read out from the sensor, leaving the image scale of the object being imaged, unchanged. Allow arbitrary resolutions to be set.
ADC 12bits
*The SV305 camera offers 8 bit RAW output or 12 bit
Pixel Size 2.9X2.9μm
Smaller pixel image sensors gains more pixels inside the same camera, leading to higher resolution.
IR-650 Cut
The IR650 filter, high transmittance of visible light, infrared transmittance low. The human eye cannot detect the infrared part of filter, and can adjust the scenery within react to the color of the image rendering color to achieve the best visual effect, greatly improve the image quality.
SV305 astronomy camera solves the general astronomy camera problem:
--Optimize pixel vignetting
--slow frame when planet shooting
--Storage frame rate is slow
--No ROI function
--Short exposure time
Now SV305 astronomy camera meet the basic needs of astronomy enthusiasts for planetary photography.
SV305 camera support
Windows system -- Sharpcap software. Windows Driver version 1.3.7 .
Linux system -- AstroDMx Capture for Linux
Raspberry Pi system --  AstroDMx Capture for Linux
Mac OS system -- AstroDMx Capture for Linux  (version 0.84.7).  macOS 10.11 and above.
Support ASCOM driver, PHD2 Guiding Software (version 2.6.9dev1).
Buyer's show
Sun on SV305， Coronado PST
By Seleznev Dmitry
M27
Newton 130PDS
SVBONY SV305
CLS filter
By Kevin Parker
10" Newtonian telescope With SVBONY SV305
Jupiter and Mars from November 1 2020. Not in any sort of scale.
10" Newtonian at F14 for Jupiter, F16 for Mars, Svbony SV305, NEQ6 Pro. Sharpcap for capture, AS!3 for stacking, PS for sharpening and levels.
New photos on SV305
SV305 Use By Sharpcap
MAK127 + SV305 + Moon Filter from SVBONY
by Arkadiusz Maciej Jeż
HOW TO USE?
Some questions you may care about:
Q: I can only see the green screen, I can’t get a clear image. Does the camera is defected?
A
: Svbony SV305 planetary camera designed with GRGB color. So when you get a green image, don’t be worried, it doesn’t means the camera is a defected one, just change/adjust the white balance, until you could get a normal image.
Q: I can use the SV105 camera, and get some clear images. However, the 305 doesn’t show any image, just the dark screen. What should I do?
A
: The SV305 is totally different with the SV105 camera. The SV305 is designed with the SONY IMX290 sensor, it is more sensitive. And its exposure time is from 0 to 1800s, so when you first time to use it, adjust the exposure time, you could get different images. Longer exposure time, you could get more light come in. it won’t be dark screen if you toward to a bright target.
Q
:
Can I use the SV305 planetary camera with Mac OS?
A
: Nope, the SV305 could not work with Mac OS now.
First step, Svbony produce the Windows SDK and Driver for SV305, so you could only use the SV305 with Windows system. Thanks very much for Robin support the SV305 in sharpcap software.
Second step, Svbony produce the Linux SDK and Driver for SV305 camera. You could also use your SV305 camera with Linux system now, by working with the AstroDMx software for Linux.
Q:
Why the Gain only shows 0 -- 28.1 ?
A
: For the gain control, the SDK currently reports a minimum value of 10 and a maximum value of 300. SharpCap shows this instead as a range from between 1.0 to 30.0.
The reason for this is that the gain value that SharpCap shows is then a meaningful number – gain 7.5 is 7.5 times brighter than minimum gain, gain 20 is 20 times brighter than minimum gain and so on.
Q:
Can I add filters on SV305?
A
:The SV305 camera contuned the style of SV105 and SV205 camera, it has standard threads M28.5*0.6 for 1.25" filters.  so you could use any Svbony 1.25" filters to the SV305 camera.
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