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CassiniSoldner
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« pada: January 22, 2009, 03:05:40 PM » |
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Selamat sejahtera semua Kami baru beli filter dari CK di Penang saya x pernah ada pengalaman shoot matahari pakai filter agaknya mana imej dan setting yg sesuai? atau ada setting lain yg baik  f4 SS 125 ISO 1000  f4 SS 800 ISO 1000  f4 SS 250 ISO 200  f8 SS 640 ISO 1000  f8 SS 250 ISO 200  f10 SS 400 ISO 200 Kamera D200 Lens 70-200 (at 200 mm) Tentang WB saya rasa post process la sbb amik RAW kat sana nnt t. kasih |
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mahruz
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« Reply #1 pada: January 22, 2009, 05:36:17 PM » |
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ikut pandangan mata saya
f8
SS 250
ISO 200
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Ardu al-Balad (Garis Lintang)
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universe24
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« Reply #2 pada: January 22, 2009, 06:59:52 PM » |
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Bagi saya, setting: f10, SS 400, ISO 200 Paling bagus di antara yang post di sini.  Namun, "SS" tu juga bergandung kepada cuaca pada masa tu...kalau cuaca kurang baik, mungkin perlu set kepada "SS" yang berlahan.... Sila jangan guna ISO yang tinggi. Jangan lebih tinggi daripada ISO800. |
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To infinity, and beyond
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CassiniSoldner
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« Reply #3 pada: January 22, 2009, 08:10:28 PM » |
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thanks bro mahruz n mr universe tapi bagaimana nak hilangkan stroke kat tepi matahari tu? ni ada sikit lagi gambar pukul 4 td bersama bro mahruz..  f4 SS 50 ISO 100 nampak mcm boleh buat sinaran cincin yg memancar  kalau naseb baik ada hiasan sket |
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mahruz
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« Reply #4 pada: January 22, 2009, 11:22:57 PM » |
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mr Universe24 Boleh cerita kaedah pengimejan landscape dengan multi-expose. ptg tadi ada buat cubaan.....tak berapa jadi sebab biginer lah  S250 f6.3 iso200  |
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Ardu al-Balad (Garis Lintang)
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mahruz
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« Reply #5 pada: January 22, 2009, 11:25:37 PM » |
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lupa nak cerita 3 pic saya ambil jarak masa 5 minit guna kemera 450D dan lens 18-55
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Ardu al-Balad (Garis Lintang)
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perseid
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« Reply #6 pada: January 23, 2009, 12:18:42 AM » |
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Ini pandangan saya.
Biasanya saya fokus dan tentukan masa dedahan dengan menggunakan sunspot sebagai rujukan. Tetapi, sekarang satu sunspot pun tak ada.
Bagi saya, untuk mendapatkan dedahan yang betul, tetapkan nilai F dan ISO. Sebagai permulaan mungkin F=8, dan ISO 100 atau 200. Ambil beberapa dedahan berlainan. Imej matahari untuk dedahan yang betul akan menunjukkan 'limb darkening' (area yang gelap di tepi photosfera matahari). Kalau ada awan, boleh nampak awan dengan jelas.
he he...just my 2 cents.
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shahgazer
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« Reply #7 pada: January 23, 2009, 12:30:51 AM » |
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..atau... esok pagi, fokus pada Bulan.. kemudian tandakan titik fokus pada lense... lupa nak cerita 3 pic saya ambil jarak masa 5 minit guna kemera 450D dan lens 18-55
kena beli lens besar sikit.. sempat lagi kalau nak beli ni, esok masih ada..  |
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-Shah-
Owner & Founder of Falak Online
Personal twitter : twitter.com/shahgazer
Official Falak Online twitter: twitter.com/falakonline
*** if star moves NORTH, push the scope to EAST*** ... almost there!
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mymoon
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« Reply #8 pada: January 23, 2009, 02:19:38 AM » |
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the sun moves 360/24=15 deg per hour. Di KL the first contact is 4.30 pm and the eclipse goes until sunset, a period of about 3 hours. in 3 hours the sun will traverse the diagonal of the 450D sensor so orient the camera in this direction, I believe potrait mode will do.. From the exif your focal length is set to 34mm correspond to 54mm in the full frame. From the canon lens book the diagonal angle of view for the 50mm lense is 46 deg; a bit tight but you just made it, maybe for comfort I would go for 28mm setting on the kit lense  so set the camera on the tripod and trigger the shutter every 10 minutes to give a seperation of 5 sun diameters between shots and then use PhotoShop to merge the 18 shots of the moving sun to give the multi exposure effect. The problem is where to point the camera at the beginning if you want the image of the annular ring in the center. That I leave it to you. Sifus please share your thoughts. cheers |
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Astronomy is looking up!.......
Member of self funded astronomy group!
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shahgazer
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« Reply #9 pada: January 23, 2009, 09:07:56 AM » |
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En.Aziz, bukan ke kita boleh just merge and make a 'multiple' exposure potrait of the solar disk travessing across the 'frame' using PS, and not to worry much about finding the suitable beginning and end position of the sun? .. ni cara orang malas la kot.. |
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-Shah-
Owner & Founder of Falak Online
Personal twitter : twitter.com/shahgazer
Official Falak Online twitter: twitter.com/falakonline
*** if star moves NORTH, push the scope to EAST*** ... almost there!
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universe24
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« Reply #10 pada: January 23, 2009, 10:25:33 AM » |
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Kita tak boleh just merge and make "multi-exposure" tu. Ini kerena kita perlu menunjukkan jejakan Matahari semasa gerhana berlaku...kalau hanya simply merge dalam photoshop, tak perlu lah guna wide angle lens. Tujuan multi-exposure adalah untuk menunjuk gerakan matahari semasa gerhana dan perubahan fasa-fasa gerhana.
Untuk mendapatkan pointing direction yang betul, sila cari maklumat tentang alt-azi matahari dari pukul 4:30pm ~ matahari terbenam. Dengan ada azimuth punya bacaan, kita tahu lah berapa shift kedudukan matahari along the sea level.
Secara short cut, kalau lens yang diguna cukup wide, point camera pada arah dimana gerhana maximum akan muncul kat situ.
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To infinity, and beyond
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mymoon
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« Reply #11 pada: January 23, 2009, 09:45:32 PM » |
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we can make use of the fact that the stars(which the sun is) appear to drift west four minutes earlier each night/day to determine the position of the sun today knowing fully where where it was yesterday relative to say a building or a tree.. eg If a star is say north at 8pm tonight, it will be north four minutes earlier tomorrow night, two hours earlier in a month. In 6 months it will be north at 8am! Try play2 with the latest stellarium by looking west at the sun and moon too and change the date to next month. You see sun jump forward. Try to simulate the solar eclipse whilst you at it so had you been preparing your self to photograph the sun like the folks at planetarium negara you would know where the sun is weeks ago (in fact they ask permission to remove a particular branch which is in the way of the eclipse but it was not entertained) and can then predict where it will be on the 26th at 4pm onwards.     cheers |
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Astronomy is looking up!.......
Member of self funded astronomy group!
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Jazlan
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« Reply #12 pada: January 24, 2009, 01:03:34 PM » |
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harap2 xmendung.....moga kita ditunjukkan kebesaran Allah ini....Amin jika saya dpt melihat gerhana isnin ni, itulah first time dlm hidup aku tgk gerhana, tapi gerhana separa, bukan penuh punyer |
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Heal the world, Save the world, save the children, for the next generation.
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me_ai
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« Reply #13 pada: January 24, 2009, 03:33:33 PM » |
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nmpk gaya, tk dpt le join sesi ni,
naik ke Kelantan pulak hari ni...
org yg amik gmbr atas ni, tak masukkan gmbr sdiri ni....kurang aci la camni....
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i will reach the sky
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mymoon
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« Reply #14 pada: January 24, 2009, 11:15:52 PM » |
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harap2 xmendung.....moga kita ditunjukkan kebesaran Allah ini....Amin jika saya dpt melihat gerhana isnin ni, itulah first time dlm hidup aku tgk gerhana, tapi gerhana separa, bukan penuh punyer kdg2 Allah sembunyikan matahari, dia datang kan awan, jadi mendung dan tiba2 hujan kita bersedih dan tanya2 ke mana hilang nya matahari tak dapat lihat gerhana rupa2 Allah nak hadiahkan kita pelangi Subhanallah.  cheers |
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Astronomy is looking up!.......
Member of self funded astronomy group!
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