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Antlia H-Alpha 3nm Pro 36mm

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SKU

AN-HA30NM036P

ผู้ผลิต

Antlia

จำนวนในสต๊อก

เหลือ 1 ชิ้น

น้ำหนัก

50.00 g

ราคาของเรา

฿10,990.00

ตัวเลือก

จำนวน (เหลือ 1 ชิ้น)

(จาก 1 ถึง 1)

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This H-alpha 3nm Pro narrowband filter is the upgraded version of the Antlia H-alpha 3.5nm filter. The narrower bandwidth of this filter enhances the contrast of nebulae that emit H-alpha by decreasing transmission of out-of-band wavelengths from light pollution, the moon, and chromatic aberration of bright stars. The filter rejects out-of-band wavelengths by up to 5 OD (99.999%).

This filter is suitable for imaging most emission nebulae, planetary nebulae and supernova remnants with monochrome astronomy cameras. It can bring out a tremendous amount of detail in nebulae where H-alpha emission is present. Because the filter passes little light outside the H-alpha band, longer exposure times and larger apertures or faster focal ratios may be necessary.

The H-Alpha 3nm Pro filter is designed to deliver >90% transmission at the center wavelength of 656.3nm. The transmission of the H-alpha 3nm Pro over its working bandwidth guarantees high transmittance when working with both long focal ratios and fast optical systems (as fast as f/3).

For the H-alpha 3nm Pro narrowband filter, we use latest coating technology to achieve 5 OD (0.001%) out of band blocking. Each filter is individually tested and scanned to ensure that product quality meets our high-performance parameters. The end result is a filter that achieves excellent contrast but with a price-to-performance ratio that compares more favorably than similar premium filters in the market.

Features:

Extra narrow 3nm bandwidth for superb contrast and ability to record the faintest H-alpha nebula detail
> 5 OD (0.001%) (out of band blocking) @300-1000nm
Steep spectral profile minimizes halos around bright stars
Peak transmittance guaranteed >90% at the emission line 656.3nm to increase the contrast in the shortest possible imaging time
3nm Pro Narrowband filters are coated to the edge of the part and are edge blackened to minimize reflections and stray light
A single substrate to eliminate internal reflections
3nm filters can be used with fast optical systems to f/3 with only slight loss of signal
Parfocal with Antlia LRGB, SII and OIII filters (telescope optics need additional consideration)
The Ha filter can be used with SII,OIII set of filters to achieve the impressive Hubble color palette
Superior optical reliability reduces post image processing
This filter is not suited to deep sky objects that do not contain Ha emissions
NOT SAFE FOR USE AS A SOLAR FILTER

Specifications:

36mm round unmounted (2mm thickness +/-0.05mm)
Surface Quality: 60/40 (Refer to MIL-O-13830)
2 sides fine-optically polished to ensure accurate 1/4 wavefront
30 arc second parallelism
Center-Wavelength of Antlia H-Alpha 3nm Pro filter: 656.3nm
H-Alpha 656.3nm T＞90%, 90% transmission at H-Alpha line 656.3nm
> 5 OD(0.001%) @ 300-1000nm
2 sides multi-layers anti-reflection coating
Single / Non-glued substrate

Filter Ring:

None. 36mm round diameter, Unmounted

Not Recommended:

Visual observation
DO NOT LOOK AT THE SUN WITH ANTLIA FILTERS

ตัวแปลง GSO 2" มีเกลียว T อยู่ด้านใน (สำหรับแปลง T-Adapter ของกล้องดูดาวให้กลายเป็น eyepiece holder ขนาด 2")

แปลง T-Adapter ของกล้องดูดาวให้กลายเป็น eyepiece holder ขนาด 2" เพื่อต่ออุปกรณ์เช่น eyepieces, diagonal ตามความเหมาะสม
ปลายที่ต่อกับกล้องมีเกลีบวที (T-thread) เพื่อต่อกับ T-Adapter
อีกปลายนึงเป็น eyepiece holder ขนาด 2" ที่มี compression ring แบบทิงเหลืองเพื่อป้องกันอุปกรณ์เป็นรอย
ผลิตจากอลูมิเนียมคุณภาพสูง แข็งแรงทนทาน
สินค้าคุณภาพสูง ผลิตในไต้หวัน

฿990.00

ลดล้างสต๊อก iOptron iEQ45 AZ Base

AZ base for converting iEQ45 from EQ to AZ. Requires pier or tripod (not included)

For a early version iEQ45 with 8406 hand controller, a hand controller and control boards upgrade are needed. Please contact iOptron directly for more information. Please also make a note when ordering if the mount is not an 8000D model. Some extra parts and DIY instruction will be supplied.

฿3,990.00

SALE

iOptron Carry Bag for 2-inch Tripod

Top loading carry bag. Perfect for carrying 2" tripod for CEM60/CEM60EC, iEQ45/iEQ45 Pro, iEQ30/iEQ30 Pro, MiniTower/MiniTower Pro* and CEM25/ZEQ25 mount. Will hold other tripods also (see dimensions).

Durable padded fabric with two adjustable shoulder straps and a waist buckle strap.

* Does not fit 2" MiniTower Pro tripod with triangle mounting plate.

฿1,890.00

สินค้าหมด

เคสแข็งสำหรับ iOptron CEM40 Hard Case

Custom fitting hard case for CEM40

฿3,990.00

SALE

Askar M54 M48 T-Ring for Nikon Z-Mount Mirrorless Cameras

In astrophotography, Nikon, Canon, Sony mirrorless cameras have been used more and more frequently by astronomy amateurs in recent years. Therefore, on the basis of the DSLR camera adapters，Sharpstar have introduced camera adapters suitable for Nikon Z, Canon R and Sony E mirrorless cameras.

Out of the box, this adapter has an installed ring with an M48x0.75 female thread. This can be removed to expose an M54x0.75 female thread.

฿1,490.00

สินค้าหมด

Sky-Watcher 8.4" Pier Extension for EQ6 / EQ6-R / AZ-EQ6

Works on EQ6 and EQ6-R mounts. Raises the mount head 8.4”. Especially useful for owners of long-tube refractor telescopes because it positions the eyepiece at a more comfortable height and prevents the telescope from hitting a tripod leg.

฿3,390.00

PREORDER ZWO FF80 APO 0.75× Full Frame Reducer

FF80APO 0.76X Full Frame Reducer

ZWO has released a new 3-inch FF80APO 0.76X full frame reducer with a three-element optical design, including one element made of ED glass. Its reduction factor is 0.76x, which gives the FF80APO f/7.5 astrograph a shortened focal ratio of f/5.7 and a shorter focal length of 312mm. This allows for less total integration time and a wider field of view, bringing more convenience and possibilities for your wide-field deep sky imaging.

The reducer has a rear interface that attaches to the FF80APO telescope tube’s included four-segment camera extension tube. The back focus is the standard 55mm, and it has a built-in M48X0.75 2-inch filter thread for easy attachment.

฿8,990.00

ราคาช่วงแนะนำ เมาท์ตามดาว Sky-Watcher Wave 150i Strainwave Mount ไม่รวมขาตั้ง

เมาท์ตามดาว Sky-Watcher Wave 150i Strainwave Mount

Wave 150i GoTo strainwave head
Works seamlessly with ASI Air (USB-B cable included)
EQ and AZ modes
Built-in cable management
Weighs 12.8 pounds (5.8kg)
33-pound (15kg) payload capacity without optional counterweight
55-pound (25kg) payload capacity with optional counterweight
Single D/V hybrid saddle
Latitude range from 0° to 90°
Red LED for latitude scale and bubble level
Wi-Fi and Bluetooth
RA power off braking function
RA and DEC home position functions
Requires 12V 2A power (not included)
Optional tripod, pier extension, and counterweight kit not included
Optical Tube not included

฿59,990.00

SALE

Sky-Watcher Dovetail Mounting Plate, Long 33.5cm

Compatible with most Sky-Watcher mounts and drilled to accept Sky-Watcher tube rings.

Also suitable for Celestron, Vixen, Orion and other mounts with Vixen-type saddles.

฿990.00

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