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◇ The appearance of Z4 breaks through the previous style of Sharpstar with its matte gray coating. Light gray lens tube plus dark gray focuser and tube ring, make the astrograph looks calm but vibrant.
◇ The tube ring has a handle on the top which is easy to carry and assemble. The handle is designed as a slot on which you can mount a finder base, etc.
![自主仿真 自主仿真](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/7b87553a-1cec-416d-8d20-8355d9523dd3.png)
100mm aperture
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/682fc9f2-8c62-4bc5-badc-3219f8d1ac04.png)
550mm focal length
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/c0b98a16-4ccf-4066-a78d-0f8afded78f1.png)
Sextuplet air- spaced APO design
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/28f290e4-343b-48af-ab52-6037601bca89.png)
APS frame
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/abf5e85d-65fb-4d9b-b872-9abfa5f131b7.png)
Retractable lens hood
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/6fc836e5-19cd-4ac5-9799-8aa0e1130321.png)
550mm focal length
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/94e16046-5d78-4102-b60f-d4a2147c03b2.png)
multi-functional handle
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/ff4a4e93-1853-4fa7-895a-c815bcfeef7e.png)
300mm dovetail plate
◇ Z4 has an aperture of 100mm and the focal ratio is f/5.5.
◇ Z4 is a sextuplet astrograph with three pieces of lens at the front and three pieces at the back, and two of them are ED glasses.
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/b6023cac-5e82-4877-807e-ef25e766ee78.png)
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/79975f5a-f2cf-4ab0-bdff-98ddc9d00b33.png)
100mm aperture
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/1bc3c164-5f75-4aab-be6c-cc376c470260.png)
Sextuplet air-spaced APO design
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/6736aa94-a824-40a5-b9cf-b5362788f62c.png)
APS frame
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/b67acb1d-d825-4e40-b87c-93948d2bb4e0.png)
Central RMS radius 3um
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/eceb0bf8-0cec-415d-984f-1c029f98b5da.png)
◇ Just like other series of Sharpstar astrographs, Z4 is designed as self-flattened so there is no need to calculate the back focus. You can just make the target stay at the focus, and the optical system is perfect for imaging.
◇ Z4 uses a large 3.4” focuser with a 1:10 fine adjustment knob and a 360° rotator for easy focusing and angle adjustment.
◇ It has M82, M68, M54, M48 adapters, and the M48 one has an internal thread that can fit 2” filters. And a 300mm Vixen-style dovetail plate, makes it easier to balance on the equatorial mount.
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/0763897d-f3f9-4dbe-8dae-dc84c78442d8.png)
No need for flattener
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/790ccc23-6761-4a37-a97c-8df997a92e78.png)
No need to calculate the backfocus
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/237cdea8-29fc-4cb2-9117-ba57e7540257.png)
3.4" large rack- pinion focuser
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/70eb4bb4-58d7-4b4b-8878-b1fe2e3b398c.png)
1:10 fine adjustment
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/e9562478-b44a-463b-8dcc-de099bdc8f8c.png)
Various adapter
![图片名称 图片名称](https://omo-oss-image.thefastimg.com/portal-saas/new2022072923460240318/cms/image/0e452651-9faa-46c5-94de-a9db5c8baf22.jpg)
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