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John78

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About John78

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  1. So CCD binning connects photosites together to make effective bigger pixels, importantly, with the associated read noise and dark current of the single/sensor. CMOS "binning" still samples every pixel as unique and accumulates the value in the a2d and reports it (after its been averaged down to 10bit, this is I hope a software problem to be fixed) I could well be wrong, but I think a binned CCD gives you a 16bit output of n binned pixels BUT at the read noise/dark current etc... of a square root n pixel. However you bin a CMOS image you're just averaging or stretching, if you took the 12 or 14 bit raw image and calculate the bin you don't get the advantage of big pixels, because every pixel in the bin has its errors. So when I say "hardware" I think in the current technologies its absolutely fundamental to how photons are read off a CCD and a CMOS sensor currently. I'm happy to be enlightened though
  2. So isn't the problem software "binning" is fruitless, and that if properly implemented binning on CMOS sensors was implemented at a hardware level you wouldn't have to baffle yourself in math.
  3. I'm fairly sure this is because of MPB's business (selling 2nd hand goods), although they have also recently started accepting paypal might be a part of it too. Paypal have the funds ringfenced on your card already - you've paid, you can't spend that £108 elsewhere currently whilst its reserved. Once MPB dispatch the order and mark it so on Paypal they will have the funds released to them.
  4. Yes its normal. Paypal are effectively escrowing your funds so you can be happy with your purchase from (I assume) MPB photographic before they get paid you need to see the goods.
  5. John78

    Going To GoTo (Probably)

    So if you have a computer equipped with a real serial port you don't need anything special at all to connect a NEQ6 to a computer, no USB serial trickery - you just plug a cable into the PC serial port - they're cheap on a well known auction site, this solves the issue of windows renumbering your serial ports when you don't want it, or the cable coming with a hard set port that's already set to something else on the machine. As others have highlighted if you're still using an SLR then the goto/platesolving in APT is pretty good - whatever your solution you need EQmod and ASCOM installed as that's how astronomy gizmo's talk and play properly across multiple programs, so APT talks to to EQmod to move the mount via the correct ASCOM driver - all a non issue. The handset works fine too - but you have no choice but to use the computer to control the mount for PHD guiding so you might as well use EQmod and plate-solving to perfectly frame your target, its a non-decision. (You dont need EQmod if you are only guiding!) Regarding stellarium or CdC for your planetarium - whilst stellarium looks much prettier, its naff, its a pig to connect and stay connected and needs loads of settings changed to show you what CdC shows you by default and connects first time every time with one click. I personally never got on with APT - so I use astrotortilla for my platesolving - point the mount with CdC, use astrotortilla to confirm the mount is looking in the right position and move it till it is then image with SharpCap.
  6. John78

    Gadgets that work !

    That's a lot of money for a 3d printed bit of plastic!
  7. John78

    Useless unmounted filter mounts from TS.

    Well according to astrodon their 2" unmounted filters are 50.00mm in diameter
  8. A thing to note that I didnt realise until earlier when looking at cn, is the thin version of the QHY wheels only take filters that are 5.5mm and smaller in height excluding the threads, my and therefore your baaders are 6mm - so they wont fit without surgery which means you'll need the standard 20mm wheel to get them in unmolested, the 20mm wheel shouldn't cause a back-focus problem with a QHY camera however.
  9. John78

    New Mesu 200 for £1500.....really...

    About the same as a New Dacia, £5.3kish. I always worry these things are usually either stolen or a scam.
  10. It's complete in very good condition with original case, 1.25" 7 position carousel, female m42 adapter one side and male m42 the other. £175 ono bank transfer or PayPal.
  11. Well the CAT6 standard is 100m, and its rated for 10 gigabits if I recall properly - so, I cant believe he's testing the data throughput rate - so yes something wrong at either end, or the bit in the middle!
  12. That will work fine if the OP shed is wired into the consumer unit - if its an extension lead plugged into the house it might flake out. The most reliable option is a computer in the obsy and just remote desktop into it.
  13. So in DSS if you load one frame from L into all the separate stacks and right click it and mark it as a reference frame and leave it unchecked - it will align all the LRGBHa subs to overlay perfectly onto that reference frame - so no alignment issues.
  14. This thread with a different camera seems to show an equally odd thing, not sure if @vlaiv ever reached any conclusions, but a mono sensor with colour firmware might produce the effect shown. There are certainly 2 firmware versions for your camera on ASI's site one to try and improve ekos/kstars/indi compatibility, maybe try loading either or both of those.
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