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mymoon
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« pada: February 02, 2009, 12:54:44 AM »

saya rasa ada yang tak kena dengan rakaman M42 dan processing





any sifu boleh tolong.

cheers
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universe24
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« Reply #1 pada: February 02, 2009, 01:12:17 PM »

Obviously ada mis-alignment. Sila kemukakan lebih banyak sikit maklumat tentang apa yang telah dilakukan. Apa software yang digunakan?
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mymoon
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« Reply #2 pada: February 02, 2009, 06:08:33 PM »

Obviously ada mis-alignment. Sila kemukakan lebih banyak sikit maklumat tentang apa yang telah dilakukan. Apa software yang digunakan?

TQ. will  redo . Using DSS for  alignment and stacking using all auto function and PS for levels and combining different exposures wink

THe sky in KB may not be as dark as langkawi, but it is about as dark as KKB.

still cloudy though.

cheers
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mymoon
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« Reply #3 pada: February 02, 2009, 10:35:27 PM »

here is another try processing the running man + great orion

 

2x10mins,2x5mins,5x3mins,5x30sec,5x5sec together with associated darks, flats, bias
Canon 40Dh, canon 500mm+2x extender (1000mm at f8)
Guided with a 70mm +TVGuider
HEQ5 pro mount
Imaged at Kota Bharu
31 jan 2009


still need improvement. wink wink

time for image processing course. grin

aiya now got running nose from 2 nights berembun evil

cheers
« Last Edit: February 02, 2009, 10:38:55 PM oleh mymoon » Logged

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« Reply #4 pada: February 03, 2009, 11:43:53 AM »

cubaan terakhir untuk M42 series ini.

  running man dan great orion nebula.



like trying to squeeze water out of stone.

pengajaran bagi saya untuk workflow masa depan kerana inilah pertama kali berembun 3 jam. grin

1.Rakaman 10 min patut lebih banyak. maybe sampai 5 kali bermakna lebeh dari 50 min

2. rakaman perbedzaan step diperkecilkan contoh 10minx5, 7 minx5, 5 minx5, 2.5minx5 ,60secx5, 30secx5, 20secx5
    jangan dismantle peralatan.

3. dark frames dirakamkan terus selepas itu, sequence saperti di step 2. lebeh baik dengan mengguna CF card lain.
   sementara menunggu darks dikamkan download lights dan check. sebabnya kalau masa menizinkan boleh ambil sekali lagi.

4. buat duplicates, triplicates kalau boleh of the recorded images.

5. selepas solat subuh semasa matahari naik rakam flats dan bias frames

6. tidur

7. bangun makan dan process gambar.

 grin grin grin


ada apa komen dari kawan2

cheers
« Last Edit: February 03, 2009, 11:08:09 PM oleh mymoon » Logged

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universe24
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« Reply #5 pada: February 03, 2009, 10:03:34 PM »

500mm f/4 ini boleh focus bintang sampai tahap ini memang cukup bagus.
I rasa exposure 30s tu masih preserved trapezium M42 tu, tak perlu lah shorten exposure lagi....Huh
Processing pada center of M42 terlalu gelap. Are you use layer masking?
Overall, well done!
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mymoon
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« Reply #6 pada: February 03, 2009, 11:22:27 PM »

1. memang canon 500mm f4 satu2 nya canon prime lense yang sangat sharp. Focus dengan guna sirius dan live view.
2. ya saya guna layer masking. teknik HDR blending yang digunakan dalam image pertama tak berjaya di sebatkan ada sedikit rotation.
3. terima kasih.

kalau di izinkan saya akan cuba ambil 5x20 mins. saya terbaca ada yang mengambil entah berapa 50min subs. mungkin ini kena buat imaging dua malam lah grin

bila sifu mau buat kelas image processing. saya nak process image horsehead dan flame nebula. rolleyes

cheers
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