請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
**celetron 102GT折射和5i折反射**
Tarepanda, Celestron does not have the model 102GT.
Which is the one list below?
Wongsir
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NexStar 5i (Schmidt-Cassegrain 5")
A breakthrough in GoTo telescope design, the NexStar 5i features Schmidt-Cassegrain 5" aperture optics with StarBright™ multi-coating, powerful 1,250mm focal length and f/10 focal ratio. The NexStar 5i is a fully automated GoTo telescope. With features like AutoAlign two-star alignment, a sky tour feature, a database of over 40,000 celestial objects and easy to use hand control, the NexStar 5i is the perfect combination of power and portability.
The NexStar i Series 5i Specifications:
127mm (5") diameter Schmidt-Cassegrain
Focal Length of 1250mm
Focal Ratio of f/10
Six slew speeds: 6& /sec, 2& /sec, 128x, 64x, 16x, 8x
Fully enclosed high speed motors on both axes
Integrated hand controller built into the side of the fork arm
StarBright Multi-Coating
Designated AutoGuider port
Auxiliary Port for optional Accessories, including CN-16 GPS module
Battery Compartment for 8 (user supplied) AA batteries
Weight: 17.6 lb.
The NexStar i Series 5i Standard Accessories:
1-1/4" – 25mm Pl&ssl (50x) Eyepiece
StarPointer Finderscope
90° 1-1/4" Star Diagonal
1-1/4" Visual Back
Computerized Hand Control
NexRemote Telescope Control Software
----------------------------------------------
NexStar 114GT ( 4.5" diameter Newtonian Reflector )
The NexStar 114GT has over twice the light-gathering power of an 80mm telescope! Compact in design, with images bright enough to reveal the polar ice caps on Mars or the cloud belts on Jupiter. View the details of the lunar surface. The rings of Saturn are clearly visible. With the extra light gathering capability of the 114GT, a number of the Messier objects such as the globular cluster in Hercules (M13), or the Great Nebula in Orion (M42) are available to you. Begin to explore some of the fainter Messier objects using the additional light-gathering capabilities of the 114GT』s 4-1/2" primary mirror. Because of the Newtonian design, the mirror gives fully color-corrected views that are best suited for astronomical use.
The NexStar GT Series 114GT Specifications:
114mm (4.5") diameter Newtonian Reflector
1000mm Effective Focal Length
f/9 Effective Focal Ratio
Motorized Altazimuth Mount
4,000+ object database
Nine slew speeds: 4& /sec, 2& /sec, 1&/sec, .5 /sec, 32x, 16x, 8x, 4x, 2x
Weight: 15 lb.
The NexStar GT Series 114GT Standard Accessories:
1-1/4" 25mm (40x), 10mm (100x) Eyepieces
Computerized Hand Control
StarPointer Finderscope
The Sky Level I CD-ROM
NSOL Control Software
Sturdy, Adjustable Aluminum Tripod with Accessory Tray.
--------------------------------------
102AZ ( 4.0" Refractor )
These telescopes are carefully designed for the more serious astronomer and terrestrial observer and feature exquisite optics and precision, heavy duty mounts. The optics are made to exacting standards, with high quality materials to ensure top performance. You'll find that astronomical viewing is a delight with these large, powerful 4" telescopes. They offer a 63% increase in image brightness over 80mm models.
The altazimuth mount is easy to use and has slow motion controls on both the R.A. and DEC. axes. These controls are on flexible cables, to allow for quick and easy pointing and tracking.
When used for astronomical viewing, this telescope yields breathtaking views of the moon, Saturn with its ring structure, Jupiter and its belts, and hundreds of deep-sky objects including: galaxies, nebulae and star clusters. Add an optional solar filter and you can observe activity on the sun. For terrestrial use, you can enjoy views from your own backyard or take your telescope out in the field to enjoy the natural environment, up close.
The FirstScope102AZ Specifications:
102mm (4.0") Refractor
500mm Focal Length, f/5
Slow Motion Adjustment Cables
Sturdy Adjustable Aluminum Tripod with Accessory Tray
Telescope Weight: 17.5 lb.
The FirstScope 102AZ Standard Accessories:
1-1/4" 20mm Pl&ssl (25x) Eyepiece
45& Erect Image Diagonal – 1-1/4"
6x30 Finderscope
Altazimuth Mount
The Sky L1 CD ROM
Tarepanda, Celestron does not have the model 102GT.
Which is the one list below?
Wongsir
-----------
NexStar 5i (Schmidt-Cassegrain 5")
A breakthrough in GoTo telescope design, the NexStar 5i features Schmidt-Cassegrain 5" aperture optics with StarBright™ multi-coating, powerful 1,250mm focal length and f/10 focal ratio. The NexStar 5i is a fully automated GoTo telescope. With features like AutoAlign two-star alignment, a sky tour feature, a database of over 40,000 celestial objects and easy to use hand control, the NexStar 5i is the perfect combination of power and portability.
The NexStar i Series 5i Specifications:
127mm (5") diameter Schmidt-Cassegrain
Focal Length of 1250mm
Focal Ratio of f/10
Six slew speeds: 6& /sec, 2& /sec, 128x, 64x, 16x, 8x
Fully enclosed high speed motors on both axes
Integrated hand controller built into the side of the fork arm
StarBright Multi-Coating
Designated AutoGuider port
Auxiliary Port for optional Accessories, including CN-16 GPS module
Battery Compartment for 8 (user supplied) AA batteries
Weight: 17.6 lb.
The NexStar i Series 5i Standard Accessories:
1-1/4" – 25mm Pl&ssl (50x) Eyepiece
StarPointer Finderscope
90° 1-1/4" Star Diagonal
1-1/4" Visual Back
Computerized Hand Control
NexRemote Telescope Control Software
----------------------------------------------
NexStar 114GT ( 4.5" diameter Newtonian Reflector )
The NexStar 114GT has over twice the light-gathering power of an 80mm telescope! Compact in design, with images bright enough to reveal the polar ice caps on Mars or the cloud belts on Jupiter. View the details of the lunar surface. The rings of Saturn are clearly visible. With the extra light gathering capability of the 114GT, a number of the Messier objects such as the globular cluster in Hercules (M13), or the Great Nebula in Orion (M42) are available to you. Begin to explore some of the fainter Messier objects using the additional light-gathering capabilities of the 114GT』s 4-1/2" primary mirror. Because of the Newtonian design, the mirror gives fully color-corrected views that are best suited for astronomical use.
The NexStar GT Series 114GT Specifications:
114mm (4.5") diameter Newtonian Reflector
1000mm Effective Focal Length
f/9 Effective Focal Ratio
Motorized Altazimuth Mount
4,000+ object database
Nine slew speeds: 4& /sec, 2& /sec, 1&/sec, .5 /sec, 32x, 16x, 8x, 4x, 2x
Weight: 15 lb.
The NexStar GT Series 114GT Standard Accessories:
1-1/4" 25mm (40x), 10mm (100x) Eyepieces
Computerized Hand Control
StarPointer Finderscope
The Sky Level I CD-ROM
NSOL Control Software
Sturdy, Adjustable Aluminum Tripod with Accessory Tray.
--------------------------------------
102AZ ( 4.0" Refractor )
These telescopes are carefully designed for the more serious astronomer and terrestrial observer and feature exquisite optics and precision, heavy duty mounts. The optics are made to exacting standards, with high quality materials to ensure top performance. You'll find that astronomical viewing is a delight with these large, powerful 4" telescopes. They offer a 63% increase in image brightness over 80mm models.
The altazimuth mount is easy to use and has slow motion controls on both the R.A. and DEC. axes. These controls are on flexible cables, to allow for quick and easy pointing and tracking.
When used for astronomical viewing, this telescope yields breathtaking views of the moon, Saturn with its ring structure, Jupiter and its belts, and hundreds of deep-sky objects including: galaxies, nebulae and star clusters. Add an optional solar filter and you can observe activity on the sun. For terrestrial use, you can enjoy views from your own backyard or take your telescope out in the field to enjoy the natural environment, up close.
The FirstScope102AZ Specifications:
102mm (4.0") Refractor
500mm Focal Length, f/5
Slow Motion Adjustment Cables
Sturdy Adjustable Aluminum Tripod with Accessory Tray
Telescope Weight: 17.5 lb.
The FirstScope 102AZ Standard Accessories:
1-1/4" 20mm Pl&ssl (25x) Eyepiece
45& Erect Image Diagonal – 1-1/4"
6x30 Finderscope
Altazimuth Mount
The Sky L1 CD ROM
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Re: 請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
假如打算作天文攝影, 用赤道儀會較合適.Tarepanda 寫:請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
另外, 這兩支是不同級數的鏡, C5會比較versatile.
係啊
豆豸苗,真係唔該曬你提供的資料,支鏡轉為港元原來要3067元左右,已經是我經濟能力的上限了,所以希望關老闆高抬貴手啦^^豆豸苗 寫:咦. 原來真係有支咁0既鏡:
http://www.telescopes.com/products/Cele ... 23724.html
不過 optical 應該同 102AZ 支鏡係一樣的.
對了,豆豸苗看來你是個經驗豐富的觀星者
謝謝你提醒我,GT不能手動的,如果沒電的那確實挺麻煩
而最重要的是我沒有任何觀星的經驗,所以才要電腦替我找
但電腦又不知准不准的,對追蹤攝影而言,GT恰不恰當呢
Re: 請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
中子星,你說的也有道理,其實讀中一時,也就七年前吧,我已經細讀坐井會黃會長的名著天文攝影入門,赤道儀是挺理想的,不過見GOTO的坐架是電腦控制,心想也許會比較精確點,但其實我都唔太清楚GOTO是什麼東東來的,再者,若想另外買赤道儀,像Vixen的要接近4千,內地的雖便宜,但又不知質量如何,所以不知該買什麼樣的赤道儀,你有什麼好介紹,不過我的預算是Subaru 寫:假如打算作天文攝影, 用赤道儀會較合適.Tarepanda 寫:請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
另外, 這兩支是不同級數的鏡, C5會比較versatile.
celestron 102 +電動赤道儀不能超過4000元,那是我全副身家啦~~~
Re: 請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
依你的情況, 我還是建議你不如參加嚇d學會的活動, 睇定d再作打算.Tarepanda 寫:中子星,你說的也有道理,其實讀中一時,也就七年前吧,我已經細讀坐井會黃會長的名著天文攝影入門,赤道儀是挺理想的,不過見GOTO的坐架是電腦控制,心想也許會比較精確點,但其實我都唔太清楚GOTO是什麼東東來的,再者,若想另外買赤道儀,像Vixen的要接近4千,內地的雖便宜,但又不知質量如何,所以不知該買什麼樣的赤道儀,你有什麼好介紹,不過我的預算是
celestron 102 +電動赤道儀不能超過4000元,那是我全副身家啦~~~
Re: 請問celetron 102GT折射和5i折反射,哪一個比較適合天文攝影?
係啊,我都咁諗,所以呢個星期六晚參加左坐井會的蒲台島觀星活動,開開眼界,仲入埋會添,希望到時天公作美啦Subaru 寫:依你的情況, 我還是建議你不如參加嚇d學會的活動, 睇定d再作打算.Tarepanda 寫:中子星,你說的也有道理,其實讀中一時,也就七年前吧,我已經細讀坐井會黃會長的名著天文攝影入門,赤道儀是挺理想的,不過見GOTO的坐架是電腦控制,心想也許會比較精確點,但其實我都唔太清楚GOTO是什麼東東來的,再者,若想另外買赤道儀,像Vixen的要接近4千,內地的雖便宜,但又不知質量如何,所以不知該買什麼樣的赤道儀,你有什麼好介紹,不過我的預算是
celestron 102 +電動赤道儀不能超過4000元,那是我全副身家啦~~~
Re: 係啊
我都睇出佢也幾位不是小人物的啦,不過豆貓你講的都啱,我依家連星空88個星座都唔識,只係識分個M42,唉,我中一時就應該要參加,依家先決定入會,真是晚了點,今天啊關SIR終於肯回復我啦,我決定買支小小的CELESTRON 102A折射鏡作為我的第一支炮啦^^豆豸苗 寫:嘩... 不是啦... 雖然我留了很多言. 不代表我是經驗豐富呢~~~Tarepanda 寫:.... 豆豸苗看來你是個經驗豐富的觀星者
謝謝你提醒我,GT不能手動的,如果沒電的那確實挺麻煩
而最重要的是我沒有任何觀星的經驗,所以才要電腦替我找
但電腦又不知准不准的,對追蹤攝影而言,GT恰不恰當呢
有關攝影的問題還是問 subaru / wah! / 其他更有經驗的人吧~ ^^||||
只是我覺得學影星前, 還是先學好睇星會好一點.
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