Modified Achromat MOD! (Improve Contrast)

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  • เผยแพร่เมื่อ 20 ต.ค. 2024

ความคิดเห็น • 62

  • @kellytaylor3915
    @kellytaylor3915 2 ปีที่แล้ว +12

    Works on the Small Finder scopes.
    I also flocked the inside of the tubes of
    my Astro Tech 10x50mm finder tubes.
    Huge improvement.

  • @vibhavsharma4522
    @vibhavsharma4522 2 ปีที่แล้ว +5

    Man .. i just love your videos
    U tell things wayy easy than others...
    Nice ..

  • @fdboucher
    @fdboucher 2 ปีที่แล้ว +2

    Excellent! Thank you Jason! Seems so friggin' easy! Why don't they just do it before selling us the eyepieces and scopes? Lousy user experience is the MAIN reason people give up on astronomy and never find out how beautiful the night sky can be… Thank you again.

  • @butchphaneuf9675
    @butchphaneuf9675 3 ปีที่แล้ว +5

    Thanks so much Jason! I purchased a Skywatcher 10" dob some months ago, and they of course came with the eyepieces you mentioned. However, when I disassembled them, it looks like they have somehow matted the interior surfaces of the barrel and spacer already. It's not nearly as shiny as the outside, so maybe they've been listening to you! Sanded it anyway just to be sure. The glue stick idea is genius! Need something a little narrower for the 10mm, however. All worked like a charm. Can't wait to see the difference as soon as these pesky clouds go away.

  • @Astrolavista
    @Astrolavista 3 ปีที่แล้ว +4

    Fabulous Jason! Very well explained, thorough, and I love the glue stick trick :) From this day forth I'll always remember that my MA lenses go belly to belly :D Cheers

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว +1

      Hey Chris, Thanks buddy. Lol better than nipple to nipple I suppose XD

    • @Astrolavista
      @Astrolavista 3 ปีที่แล้ว

      @@smalloptics753 lol

  • @spacebarnsproductions7883
    @spacebarnsproductions7883 2 ปีที่แล้ว +2

    Great vids, this is really useful stuff for beginners and peeps on a budget. Keep 'em coming!

  • @spaceenthusiast-tq6pf
    @spaceenthusiast-tq6pf 10 หลายเดือนก่อน +1

    hello jason! sorry for commenting so late but i would like to know if fabric sharpie markers are okay to use when modding

  • @royfawcett7581
    @royfawcett7581 ปีที่แล้ว

    9:42 Hi Jason, I've recently bought a second hand Celestron nexstar 130slt. Unfortunately I've not had any clear night's yet to use it so I'm the meantime I'm gearing up on enough information to make things easier when I do. I find your no nonsense, jargon free videos so helpful so thanks! I look forward to watching and learning more.

  • @letsviewthis63
    @letsviewthis63 ปีที่แล้ว

    New Sub here.
    Many Thanks! I've got a Celestron C90MAK coming tomorrow. Between flocking the inside tube and modifying the eyepieces I feel like you've set me up to get a better experience from just a couple of video how-to's.
    Cheers! 🖖

  • @jimtekkit
    @jimtekkit ปีที่แล้ว +1

    Interesting mod, I tried it myself on a Celestron 25mm eyepiece and it does improve the viewing quality. Only a little bit though, it'll make a $10 eyepiece feel more like a $13 eyepiece. The colors and contrast are a bit more natural and in an A-B test you'd most likely pick the modded one. That said, a new eyepiece (even to an affordable one) is still going to yield a bigger improvement. This is more of a mini project that you do if you feel bored.

  • @avt_astro206
    @avt_astro206 3 ปีที่แล้ว +2

    Nice Overview of Eyepiece👍🔭. I think Those Cheap Plossol Eyepiece similar To The Design Of Kellner Achromatic Doublet.. Keep Going my Friend Clear Skies👍🔭

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว +1

      Hello Deep Sky, Thank you buddy, yes, Kellner are a similar design to the Modified Acromat. Take care friend, clear skies.

  • @davidleary9645
    @davidleary9645 18 วันที่ผ่านมา

    Great tip and walk-through - thank you!

  • @santanusarangi
    @santanusarangi 3 ปีที่แล้ว

    Excellent video. Please keep on posting such tips. Thank you very much.

  • @kubaduch1
    @kubaduch1 3 ปีที่แล้ว

    Great job mate. More movies and more often. Your ideas inspire me. You need to create a group on FB so that we can exchange ideas and experiences. Stay safe

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว +1

      Hello Mariusz, Thank you my friend. Great to hear you are getting some inspiration from my videos, I have thought of doing a FB group but it will probably be a bit later in the year. Take care buddy, all the best for 2021.

  • @SavasKara
    @SavasKara ปีที่แล้ว

    This is a very clever and great trick. Thank you for this beautiful advice...

  • @Martinko_Pcik
    @Martinko_Pcik 2 ปีที่แล้ว

    I like these tinkering videos. Well done !

  • @moonmonkey9595
    @moonmonkey9595 3 ปีที่แล้ว +1

    Hey bud how you been ? Hope you had a good Xmas . I done all of this to my primary and secondary on my OTA massive massive difference I’m sure you have probably done this too but if not your going to be amazed by the difference in contrast 😉 great vid bud very clear steps for others to follow to others who own a frac rather than a newt you can do this to your main objective ... again night and day difference also to note when you tighten it up as said here it is VITAL to not over tighten I also dull the threads on mine too 😀 stay safe bud and keep these vids coming 👍👍

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว

      Hello Moon Monkey, Yes thanks buddy had a great xmas hope you did too. Yes I have done it on everything that needs doing it;s a great mod for lenses that are not already blackend. Take care buddy all the best for 2021.

  • @flyfisher8475
    @flyfisher8475 3 ปีที่แล้ว

    Excellent advice and instruction. Thanks Jason.

  • @jonathanr2830
    @jonathanr2830 ปีที่แล้ว

    Excellent! Cool mod! Thank you very much!

  • @dallas69
    @dallas69 ปีที่แล้ว

    1 Use clean towel or paper towel.
    1. Disassemble (CCW) inner barrel Lens eye lens down on pt
    2. Sitting on a plastic cap and tapping the outer barrel to drop out internal assembly.
    3. Sand all inner plastic barrels to a dull finish
    4. Black Sharpe the lens edges and corners of edge (2-3 coats)
    5. Install rounded side of lens in toward each other on both lens
    6. Blow dust assembly and check for any debris before assembly

    • @dallas69
      @dallas69 ปีที่แล้ว

      Clean lens parts IPA +soapy deionize distilled water + rinse with DDW then air dry.

  • @vitorz.5784
    @vitorz.5784 3 ปีที่แล้ว +1

    Good video, I liked a lot the purpose of your channel, immediately subscribed when I saw your posts. Just a question: this sandpaper needs to scratch the plastic until it is no longer shiny, but how much abrasive must it be?
    Also, these markers easily dissolve with isopropyl alcohol, and this is what I use for cleaning the eyepieces. How can I clean them from fingerprints after painting?
    Last one: about eyepieces, is it better to use the original ones modified (mine is equal to yours), or buy another one? If the last option, have you ever had contact with Celestron Omni, what do you think about them?

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว +1

      Hello Vitor, thank you my friend. The sandpaper abrasive needs to be medium to medium/fine just enough to take the shine off. When it comes to handling the lenses I would advise using cotton or latex gloves to keep finger marks off them . As for buying a new eyepiece that's entirely up to you, the hack is easy to do so personally I would do it to the eyepiece you already have....it's cheaper that way :) The Omni eyepieces are a great budget range, I've not tried them all but I have the 12mm and it's performs well . The Omni Barlow is probably the best you can buy for the money. Hope this helps, take care, clear skies :)

    • @vitorz.5784
      @vitorz.5784 3 ปีที่แล้ว

      @@smalloptics753 I think the super 25 is really good, both in amplification (28x in my small 70mm refractor) and fov. Unfortunately, there is no Omni near 25mm, only 32 or 15. What do you recommend?
      The only think I really worry about this improving is the marker dissolving in the alcohol. Because it is very likely I will get some fingerprint on it, but I would't be able to clean it... What could be done?

  • @mikebrown9902
    @mikebrown9902 11 หลายเดือนก่อน

    If you ever need to use matt black paint Humbrol is the best in either spray or brush form. It dries flat matt unlike others

  • @jons2447
    @jons2447 2 ปีที่แล้ว

    Thank you, Jason!
    Excellent video, I just want to know which eyepieces have blackened edges & which don't.
    I have about 8-9 eyepieces, mostly cheaper Plossl versions.
    I'd like to know so I can tell which ones to mod.
    I guess I'll have to disassemble them 1 at a time to find out & fix each.
    I'm about to mod my focuser knobs w/ wooden rings to enlarge them.
    Have a GREAT day, Neighbor!

    • @smalloptics753
      @smalloptics753  2 ปีที่แล้ว +1

      Hello Jon. Thank you my friend. Most plossl's already have blackened edges you can sometimes see if they are black just by looking at them in the daytime without dismantling them, if the edges appear white that means they haven't been treated, if you can't see the edges then that usually means they are already blackened. This method isn't totally foolproof but may save you unnecessarily dismantling them. If you look at my latest video about the svbony telescope when I start talking about kellner eyepieces I show a photograph and you can see the white edges of the lenses in that photo meaning it hasn't been treated. Hope this helps 🙂

  • @bobsneberger8754
    @bobsneberger8754 3 ปีที่แล้ว

    Good to know if you ever need to clean inside an eyepiece.

  • @jacekniec762
    @jacekniec762 7 หลายเดือนก่อน

    Eyepiece Kellner in this video is good eyepiece, changed in 2000 year to MA also good eyepiece (reversed Kellner). Some long focus telescope users prefer MA, Ortho, and Huygens than other designs.

  • @russellargue2721
    @russellargue2721 7 หลายเดือนก่อน

    Great vid!

  • @mubarakhayath
    @mubarakhayath 3 ปีที่แล้ว

    What a simple and effective way to take out the eyepieces ❤️
    If it was me I would have lens elements all over the floor 😂
    Gotta try this for sure 😁
    Thanks sir 😌

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว +1

      Hello Mubarak, hope your well friend, Yes it's the best way to remove the lens elements especially when you are not sure how they are constructed.
      BTW, I have had to delete a lot of apps including whatsapp due to storage issuse on my phone , as you know it's my only recording device I've got at the moment (I really must upgrade) so I apologise if you have tride getting in touch as I don't want you to think i'm being rude. Take care buddy, clear skies.

    • @mubarakhayath
      @mubarakhayath 3 ปีที่แล้ว

      @@smalloptics753 haha okay sir ❤️
      Hope you can upgrade soon😀
      No problem sir ,we can always keep in touch via mail 😎👍

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว +1

      @@mubarakhayath Indeed we can 😀

  • @megayajesupillai9895
    @megayajesupillai9895 3 ปีที่แล้ว

    This was very useful. Thanks thala.

  • @AmatureAstronomer
    @AmatureAstronomer 6 หลายเดือนก่อน

    Nice.

  • @epic_playz4283
    @epic_playz4283 3 ปีที่แล้ว +1

    Always wanted to see a globular cluster

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว

      A great one to find is the Hercules globular cluster...It' quite easy to find....At this time of year Hercules is in the East, It's quite low at the minuet (but not to low to observe) but it will get higher as the year goes on. You can find the cluster in between the two right hand stars that form a square that are suppose to represent Hercules's body...A small telescope or binoculars will show it well. :)

    • @epic_playz4283
      @epic_playz4283 3 ปีที่แล้ว

      @@smalloptics753 oh yeah I know where Hercules is cool thanks!

  • @basilreardon5783
    @basilreardon5783 ปีที่แล้ว

    👍

  • @ChristiRich
    @ChristiRich 2 ปีที่แล้ว +2

    A modified, modified achromat!

  • @damianbutterworth2434
    @damianbutterworth2434 ปีที่แล้ว

    They used to do this with CD`s but also cut the edge at an angle. I saw it on UTube lol.

  • @guptazzzfamily8639
    @guptazzzfamily8639 3 ปีที่แล้ว

    I wanted to ask you if you would review an astronomy aap named SyEye . Because it can also be used kind of like a motored telescope

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว +1

      Hi Guptazzzz, I will have a look, I have tried a few apps for that very purpose and what I have found is telescopes tend to give off a slight magnetic field wich interferes with the gyro in the phone and therefore you get inaccurate readings. I don't know if all telescopes do this but all the ones i've tried have. You can test if your telescope is giving off a magnetic field by downloading a free App called EMF detector (There is a lot with that name any one will do) then go round your telescope and see if you are getting any high readings. Unfortunately there is nothing you can do if there is.

    • @guptazzzfamily8639
      @guptazzzfamily8639 3 ปีที่แล้ว

      Actually i will have no problem because my telescope's body is not made up of metal it is made up of some kind of plastic i suppose

    • @guptazzzfamily8639
      @guptazzzfamily8639 3 ปีที่แล้ว

      And there is is a astronomy online lectures for 10 days that i am gonna join

  • @davidbrandenburg8029
    @davidbrandenburg8029 3 ปีที่แล้ว

    did he just scratch that lens?

  • @solidus784
    @solidus784 ปีที่แล้ว

    I threw away my 10mm eyepiece and barlow that came with my skywatcher Dob but I still use the 25mm years later even though I have better stuff now.

  • @davidbrandenburg8029
    @davidbrandenburg8029 3 ปีที่แล้ว

    don't go flipping those lenses so that when you put it back together, they will be facing the correct direction and you can see clearly through them!.

  • @GalaxyArtMedia
    @GalaxyArtMedia 3 ปีที่แล้ว

    Hello, Nice to have found you channel. Good video, well explained! I see we have some common friends, like Chris from Diy Astro. My name is Ioan (John), I have also a channel Galaxy Art Media with astrophotography videos reviews tutorials and vlogs, and soon will add some space painting videos. Check it out when you have time, maybe we can collaborate in the future.

  • @davidbrandenburg8029
    @davidbrandenburg8029 3 ปีที่แล้ว

    emery cloth!. that what that is.

  • @lornaz1975
    @lornaz1975 3 ปีที่แล้ว

    That is a Kellner eyepiece.

    • @smalloptics753
      @smalloptics753  3 ปีที่แล้ว

      Kellners are similar but I can assure you it is a Modified achromat :)

    • @lornaz1975
      @lornaz1975 3 ปีที่แล้ว

      @@smalloptics753 Sure thing. I will have to learn up on that design.