2600MC vs 2600MM Ha battle (John Favalessa)

2600MC vs 2600MM Ha battle

I've always wanted to see how my OSC 2600MC with the Antlia dual narrowband 5nm filter would compare to my mono 2600MM with Astrodon Ha 5mn filter. This is not a scientifically valid test as the OSC was on my WO 120GT at 714mm focal length and the mono was on my WO 81GT. Same nights imaging though. (I didn't want to swap cameras to do a better test as I've finally nailed the tilt and backspace on both rigs). For the OSC images, I extracted the Ha using APP's "extract Ha" routine which is designed specifically for OSC dual narrowband data. My goal was to visually see if I could tell the difference.

Go ahead and pixel peep. So the verdict is, wait for it, you can get decent Ha using a OSC camera together with these dual narrowband filters. I've deliberately not labeled the version as to which is which 🤪. I thought I'd certainly be able to tell which one was the mono with Astrodon Ha filter... can you?

I'll post which is which one of these days 😂 -john

Oh, SH2-171, captured on Oct 9 and 10 (FULL MOON!!) from my bortle 7 backyard.

Final
Original
B
C
D

B

Title: OSC or mono?

Uploaded: ...

C

Title: OSC or mono?

Uploaded: ...

D

Title: mono or OSC?

Uploaded: ...

SoCal Astrophotography
AstroBin Platform open discussions community forum

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic failed
Started	...
Astrometry.net job	6410172
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):