tooth_dr

I have used my ZWO with the dew heater off, haven’t noticed any difference but good to know.

Do you have one of the clones?

I don’t have the equivalent Sii data with the mono camera, but I posted Oiii because it’s normally weak too (unlike Ha). Not a great comparison but all I had to hand. Bit of a faff pulling apart the mono optical train cos angle and position will need realigned with the second scope on the dual rig, but might be worth doing for a comparison. Almost forgot will need some clear skies too 🤪

Of course. But I’m wondering how does that translate to actual data presentation. That Sii above looks quite decent.

Yep £1231, but this is £200 cheaper than the other link

Four hours of Oiii on same night with mono camera:

I took some Sii data a couple of nights ago using an IMX571 OSC camera. I used a Chroma 3nm Sii filter and took 48 x 300s subs - 4 hours Stretched in APP, otherwise unprocessed, saved as JPEG. There is a UVIR blocking filter in the OSC camera that isnt present in the mono, may have an effect at 672nm depending on how well it's made. The QE% is less than 50% at this deep red colour in the sensor in general (mono and colour). Would there be much of an advantage swapping to mono. Adam

Seems to have closed.

Cheers Olly. Just thinking of knocking something up in the garden, with a mount permanently attached, under a cover. Want it to be as low as practicable.

I’ll have enough room as I’ve 76mm backfocus, just be handy and a reduced cost if it was included.

I take it that the tilt cant be adjusted on these models?

Guys what height is best for a pier, mix of imaging and visual, with eq5 sized mount.

That would be same as me, Jan 21, £1499 excluding vat.

This is true. My mono 268 was under £1800 including vat when I bought it, and I still consider QHY a better brand than ZWO.

Eddie just WhatsApp me as I didn’t complete the checkout. Trying to finalise a deal 😋

For someone who has never used ali express before and is finding a bit confusing, can anyone post a link to a cooled mono version of the IMX571 sensor? What import duties need to be paid? Many thanks Adam.

Is there a cheap mono version out there ?

Side by side ZWO2600 and QHY268 in a high humidity area - zero dessicant changes ZWO, several with QHY.

Good looking scope and lovely photo! What do you reckon is the likelihood that all the scopes will have perfectly round stars like the one you tested?

Beautiful object I’ve not seen before.

Nice one Bobby. Fine job of a lovely part of the sky.

I take 3+ second exposures with my 2600MC if I’m using a narrow band filter when I use an opaque acrylic sheet. I just take whatever exposure recommended by the soft ware to get the correct ADUs I used to have a KAF8300 camera with a mechanical shutter, and it really did 3 second flats to about shutter shadow. Maybe this is where the 3s rule came from.

I found my eq6 occasionally jammed up against the pier mid or end session, and on one occasion I found my 300p resting on a wall of the observatory at some point during the night. No ill effects noted. Coming to stop at sidereal speed isn’t likely to cause any issues. And the motors should stall, and wouldn’t have enough power to strip gears. Does it manually move and feel ok? Unless it was slewing when it jammed? Or something got stuck and then twisted when you unjammed it? On your other point - make a door that opens out 👍🏻

Never thought of that. Good idea! I use some Perspex sheets - either grey or opal white, depending on filter being used.

Thanks, and I agree the 105 is just great, and the only way to make it better was to get a second one 😇