Metin Altundemir

Name: Metin Altundemir
Address: Istanbul, TR
Telephone: +905333149287

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Metin Altundemir

Metin Altundemir's Photography Page

31/05/2026

Leo Triplet (NCG3628, M66, M65)

Date: 2026, April 12th - 13th, 23:28 - 00:05 local time
System: Dwarf 3 Smart Telescope
Filter: Astro - 430 nm to 690 nm
Location: Istanbul, Turkey

Bortle: 8-9

Gain 60, 60 secs
31 lights, 10 darks
Total Exposure Time: 1860 secs (31 mins)

Stacked and processed with Siril and Lightroom.

Top left: NCG3628
Bottom Left: M66
Bottom Right: M65

17/05/2026

Cigar Galaxy (M82) & Bode's Galaxy (M81)

Date: 2026, April 5th, 21:39 - 22:12 local time
System: Dwarf 3 Smart Telescope
Filter: Astro - 430 nm to 690 nm
Location: Moda, Kadıköy, Istanbul, Turkey

Bortle: 8-9

Gain 60, 60 secs
79 lights, 10 darks
Total Exposure Time: 4740 secs (79 mins)

Cigar Galaxy at top and Bode's Galaxy at bottom.

Stacked and processed with Siril and Lightroom.

28/04/2026

Sun today.

2026, April 28th. 30 shots stacked.

Dwarf 3. Stacked within.

11/03/2026

Orion Nebula

Date: 2026, March 10th, 21:15 - 22:12 Local Time
System: Dwarf 3 Smart Telescope
Filter: Astro - 430 nm to 690 nm
Location: Moda, Kadıköy, Istanbul, Turkey

Bortle: 8-9

Gain 60, 30 Secs
71 Lights, 5 Darks
Total exposure time: 2130 secs (35.5 minutes)

Stacked and processed with Siril and Lightroom.

08/03/2026

Orion Nebula

Date: 2026, March 7th 21:43 - 22:11 Local Time
System: Dwarf 3 Smart Telescope
Filter: Dual Band - OIII (500.7nm), Hβ(486nm), Hα (656.3nm)
Location: Macka, Sisli, Istanbul, Turkiye

Gain 60, 15 Secs
88 Lights, 20 Darks
Total exposure time: 1320 secs (22 minutes)

Stacked and processed with Siril and Lightroom.

Since the captured bandwidths of light are red and green, the result colors are the mixture of those with heavy red data of H bands. The teal and violet colors of the nebula cannot be captured.

19/02/2026

Sun today.

2026, Feb 19th. 30 shots stacked.

Dwarf 3. Stacked within.

28/01/2026

Orion Nebula

Date: 2024, February 6th-7th and 9th
Camera: Sony alpha 6000
Lens: Takumar 135mm lens
Tracker: iOptron Skyguider Pro
Location: Gelibolu, Çanakkale, Turkiye

ISO 400 - 59 Lights 15 Darks
ISO 800 - 56 Lights 15 Darks
ISO 1600 - 57 lights 15 Darks
ISO 3200 - 58 Lights 15 Darks

30 sec exposures. 230 lights used. Total exposure time: 6900 secs (1 hour 55 minutes).

HDR merging of four different ISO exposures with Photomatix. Stacked and processed with Siril and Lightroom. I tried four HDR merging and two Siril processing workflow to finalize.

22/01/2026

Rosette Nebula

I have reprocessed my shots. 2nd image was my first process so while working with Siril I said why not try again..

2024, February 3rd. 22:48 - 23:51 local time.
2 minutes exposures, ISO 3200, f unknown due to manual lens. 28 Lights, 8 darks.

Camera: Sony alpha 6000
Lens: Takumar 135mm
Tracker: iOptron Skyguider Pro

Gelibolu, Turkiye.

Processed in Siril and final touch with Lightroom.

21/01/2026

Andromeda (M31), M110 and M32

Same raws with better processing.

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First image:
91 lights and 20 darks.

Stacked and processed in Siril, SASP, Lightroom.

‐‐-------------------------------------------------

Second image (which I processed and shared earlier):
133 lights and 20 darks.

Stacked in DSS. Lens and color corrections done in Lightroom. Post edit in Instagram.

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Shot in two nights. 2 minutes each shot. F/4, ISO 3200.

Camera: Sony a6000
Lens: Takumar 135mm
Tracker: iOptron Skyguider Pro

Date: 2025, August, 23rd, 00:36 to 03:09. 24th, 00:21 to 03:30.

Location: Turkey, Bilecik, Harmankaya Nature Park.

03/01/2026

Andromeda From Istanbul

December 28th, 2025.
Bortle 8-9. Moon %61.
Astrofilter.
Dwarf 3 test shot. Alt-azimuth traking mode. Gain 80. 15 sec. x 90 lights. 10 darks.
Taken from Maçka Demokrasi Park, Beşiktaş.

Processed with Siril, Photoshop and Instagram.

Address

Istanbul

Telephone

+905333149287

Website

http://www.instagram.com/metinaltundemir/

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