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Found 18 results

  1. I'm trying to take pics with my Pentax camera and have a "C" mount and a 40mm extension tube........what else do I need for to take photos with this lens? Relatively new to all of this. Thanks for any replies
  2. Unknown for me as eps. Which makes have best eye relief at any given fl. Being a Vixen fan, their 8-24 is on my radar, but are there others as easy?
  3. Looking at the Ricoh site, it gives eye relief for the 8 - 24 zoom as 18 to 22mm. FOV less than XWs, but how is the optical quality from 14 to 22mm compared to XW eps for those two focal lengths? Given the varying reports of field curvature etc, is the zoom's view for astronomical viewing better edge to edge, if not wider?
  4. Picked up some great Pentax 12x50 PCF WP II binoculars off Dobbie today (thanks for meeting up at the services), and unbelievably managed to get some first light with them tonight too! Great view through them as is to be expected from Pentax, but I was pleasantly surprised on how good the views where. The moon looked great with the earthshine, and I even managed to see M81 & M82 with them (with the help of my Orion P binocular mount). M42 was very pleasing, and the open clusters in Auriga where easy (if with a stiff neck at zenith) to spot. All in all very pleased with these binos, and look forward (when clouds allow) to use them to tease out other Messier objects etc!
  5. Had some fun with my old Takumar lens, it actually comes into focus quite nicely on my Atik manual filter wheel. 2 panels of only just half hour each... I have hardly seen a clear night in months Still this setup is extremely cheap and effective.. and quick!
  6. This was one from a backlog of images on my SD card ....4th Dec 2011 5" Takahashi Refractor Pentax K5 ISO 100 1/60th sec (single exposure) Moon by mikeyscope, on Flickr
  7. Pentax XW 40 mm. Straight swap for a Tele Vue 41mm Panoptic.
  8. I've had a zoom EP on my radar for a while now, ease of use and more time actually observing is important to me. So when a second hand Pentax came up on SGL no less and at a very affordable price I couldn't resist. Specifications I will use the first light optics link so you can read up on it a bit more here's the link: https://www.firstlightoptics.com/pentax/pentax-xl-8-24mm-zoom.html First impressions What can I say it's certainly a big eyepiece but not as heavy as I thought it would be. It feels solid and just oozes quality, nothing in the design of the EP has been compromised or overlooked. When I first turned the EP so the ER went from the least to full extent it felt so smooth I smiled to myself same for the magnification which felt almost as smooth very reassuring. First session Telescope - Celeston Nexstar 6SE I setup for my session same way I always do no changes what so ever on how I position the tube on my stand. I did use a higher mag then what I usually do around the 17mm mark rather then 25mm and honestly I've never had more accurate alignment. When putting the eyepiece in the diagonal I was very careful to tighten the pins enough and make sure the line which shows what mag it's at was facing up. So onto my targets first up was Saturn, really good detail on the rings I could definitely see different shades of colour and the rings were simply breathtaking. I could make out 2 of the moons fairly easily but my attention was mainly focused on the planet. Conditons allowed me to go up to around 10mm anymore and the degradation was apparent immediately this did improve later on in the night. The Pentax was extremely forgiving on we're I positioned my eye I did use the ER to the max setting. Comfort was immediately apparent, no blackouts or any sort of trouble finding my correct eye position. I did try observing with my glasses on but I've never been comfortable with wearing my glasses during observations. I think you could definitely use this EP with glasses on but not for me. Next on my list was the moon I added my moon filter and started at 24mm. The moon had a very detailed cool look about it, the craters and mountain ranges along the terminator were almost 3D it was stunning. What I also found within the first 20 minutes of observing was the zoom mechanism was very easy to use almost intuitive along with focusing as your increasing mag it all seemed very natural. I also popped in my 2x Barlow just to see if I could, I managed to get up to 12mm which would be around 6mm with the Barlow and the views were still pin sharp, it was like I was on a mission to the moon incredible. For my last observations of the night I chose M13/M52. M13 was stunning as always but what became more apparent was the crisp and detailed view of the stars and surrounding star field. I was able to identify a lot more then a low/med/high intensity of brightness for each star. I tried to portray this in my observational sketch and the actual cluster I've never seen it so prominent or big as it was at 17.5mm. M52 this was my first observation of this stunning open cluster. Immediately apparent again was all the stars were pinpoint and sharp throughout. I kept my mag at 24mm and for the first time felt a bit constricted with the 40 degree field of view but what made up for it was the detail and contrast sharp across the field and a lovely dark background stunning. Conclusion I was going to do a pros/cons section but I soon realised I don't have enough cons. As far as I can tell there's 2 cons price and fov. If I'm honest the price is justified 1 EP which is magically 7 and fov I believe is personal taste to an extent. Fov was only an issue for me at 24mm when observing an open cluster and to be honest I expected this. What was apparent through out was how easy it all was, how clear crisp and detailed everything was. The zoom mechanism adjusting your focus all went hand in hand. The comfort factor was huge not once was I frustrated with eye position or reflecting light artificial or natural/moon. So I'm very happy with my purchase, honestly I can't see why everyone hasn't got a zoom? Here are a few pics of the Pentax for your viewing pleasure. Thank you for reading my review. Clear skies ???? Richard
  9. pixelsaurus


    From the album: Pix pix

    Horizontal banding generated by a Pentax *istDS @ISO3200 at 30s exposure. This is a jpg from the original PEF with no corrections.
  10. Thinning the herd and getting rid of equipment I no longer use. 14mm XW eyepiece for sale - immaculate condition, comes with original box, tube case and end caps - £160 includes P&P Optically superb, these are great eye pieces, I'll regret it but I'm simply not using them. Any questions then please contact me.
  11. pixelsaurus

    Comet Lovejoy

    From the album: Pix pix

    Predawn sky December 25 2011. 30 sec, Tokina 28-80mm @ 28mm, f/3.5,Pentax *ist DS, ISO 3200. Otaki Beach,NZ.

    © Mike Nicholon 2011

  12. pixelsaurus

    Transit Of Venus

    From the album: Pix pix

    One of 2 times Venus peeked through the clag. Unfiltered Pentax FAJ 75-300mm @ 300mm, F/40, Pentax *ist DS, ISO 200, EV -2.

    © Mike Nicholson 2012

  13. Comet C/2011 L4 PanSTARRS from the Cheviot Hills near Jedburgh on 3rd April 2013. Pentax K5 Pentax 165mm lens @ f5.6 iso 800 x17 60sec exposures No Flat Frames No Dark Frames (Quick & Dirty) Comet C2011 L4 PanSTARRS & Andromeda Galaxy by mikeyscope, on Flickr
  14. For holidays, birding and astronomy I would like a spotting scope that is shock and water proof, which take interchangeable 1.25 in/31.7 mm eye pieces. It would be a refractor 45 degree to 90 degree prism model, 80 to 100mm OD. Pentax models, Nikon and Celestron Regal all do, any others? For astronomy, which are going to give the best views for flat field, low or no chromatic or any other kind of aberration?
  15. Reprocessed an image from March. (What else can you do with this weather? ) 43 x 45 seconds (32 minutes total time on target) at ISO 1600 Pentax K20D & SW 150P on EQ3 Pro (although exif says that FL was 135 mm, clearly an old entry) No guiding, so slightly elongated stars bias & flats but no darks As usual, processed in PixInsight I think that stars are a little too blue, but I'll leave that for a re-reprocess
  16. A member of my local astronomical society has a Pentax K50 and wants to get a live feed from the camera onto his laptop as he finds it difficult to see anything on the small screen on the camera (as we all do). I know nothing about Pentax cameras and was wondering if anyone out there can offer some free solution for him. I use the Canon Utility software which comes with the Canon cameras, but is there a free Pentax version which can be used easily for night-time astrophotography? I suspect APT could do this but he'd have to pay for it and we are looking for a free solution if possible. I'll send him the link to this thread so he will be watching. He is using a 150mm refractor on an NEQ6 in a lovely homemade observatory. Thanks for any help. James
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