Focus Knob

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@sjhicksfamily5493 2 күн бұрын

Is this a video about how to enter a biker bar or binocular review?

@FocusKnob 2 күн бұрын

both

@DanangEdie 8 күн бұрын

What tripod did you use? Can you share the link?

@FocusKnob 8 күн бұрын

I use several but I recommend amzn.to/4c5xDIB

@morgando2 11 күн бұрын

It needs a 1/4 20 tripod threads?

@FocusKnob 9 күн бұрын

It attaches to the eyepiece of telescope and binoculars

@sirkain100 12 күн бұрын

pub d merd!!!

@bad_metaphor 16 күн бұрын

It's funny there's a lot of amateurs who can't see this CA and they claim their cheap "apo" scopes are perfect. But it's so obvious the aberration is there.

@FocusKnob 15 күн бұрын

Once you see it you can't unsee it.

@bad_metaphor 16 күн бұрын

This is what optics reviews should look like. Thank you.

@FocusKnob 15 күн бұрын

Thanks for watching.

@user-sm6ok5ub8x 17 күн бұрын

Made in china right?

@FocusKnob 16 күн бұрын

yes

@Exohumanity67 20 күн бұрын

They’re very good for the deepsky 😊

@FocusKnob 19 күн бұрын

Indeed

@nativethings 28 күн бұрын

The most detailed review in KZbin! Thanks! 🤩 Subscribe and like ;)

@FocusKnob 26 күн бұрын

Thanks for watching.

@sunilpagore1947 29 күн бұрын

Pr mujhe skymaster me interest aa rha hai

@sunilpagore1947 29 күн бұрын

Sir mene cason binoculars 10x60 liya hai kya achha

@FocusKnob 28 күн бұрын

I don't understand

@WildlifeMaraSafaris Ай бұрын

How To open the eye lens

@FocusKnob 28 күн бұрын

Next time

@abhiverma2954 Ай бұрын

How is the clarity? For bird watching and nature.

@FocusKnob Ай бұрын

should be ok

@alessioursino8850 Ай бұрын

20x80ED broken in 2021, but the quality of aggiuntive magnification plus 5x are best difference to see planets and brightest stars during daylight 😅

@alessioursino8850 Ай бұрын

You are Great astronomer!❤🎉 i’ve a 25x80ED porro Binoculars… and 82Hd angulated binocular, I love 20x80 format of binoculars.

@jta1003 Ай бұрын

Man thank you so much for these videos. I'll be tackling this same project as soon as I get the right tools!

@jta1003 Ай бұрын

What type of grease do use? and what do you think is the best way to apply so you don't have too much?

@FocusKnob Ай бұрын

You can use synthetic grease or lithium grease. Very little grease is needed for the shutter blade mechanism. I applied grease and then worked the mechanism until it moved smoothly and then wipe off one time any grease that I see so you can't even see it but there's enough residue remaining to provide lubrication. For the barrels and aperture adjustment ring you can be more liberal with the grease.

@jta1003 Ай бұрын

@@FocusKnob thank you! I'll keep that in mind!

@jta1003 Ай бұрын

Got yourself a follower❤. Question though where can I get some of the tools that you use to take apart the lens?

@FocusKnob Ай бұрын

You can find all tools you'll need on Amazon. I've linked them on the description.

@SynthRockViking Ай бұрын

Like having a 100mm telescope for each eye

@FocusKnob Ай бұрын

Two eyes always better than one

@andreig642 Ай бұрын

I saw that is it a bresser special 20x80. Is it better?

@FocusKnob Ай бұрын

Never tried the Bresser. A lot of these binoculars use similar components but different outer look. I wouldn't be surprised if it performs the same.

@davidaaaa4611 Ай бұрын

I will look at those tripods. Thanks.

@FocusKnob Ай бұрын

smart move

@CrazyMan0824 2 ай бұрын

That’s actually good for the size

@FocusKnob 2 ай бұрын

I've accepted reality

@misaelescobarruiz1193 2 ай бұрын

Muy buenos binoculares yo tengo unos celestron de 25 x 100 muy potentes

@oscargroque16 2 ай бұрын

Hola! Una pregunta: alguna construcción terrestre pudiera verse en la luna, digamos un estadio de football, las pirámides de Egipto, o una montaña como el Everest❓ gracias

@FocusKnob 2 ай бұрын

No. They would be too small.

@samsung-ux4ox 2 ай бұрын

Как бинокль 20 крат модет быть астрономическим ? Этим биноклем разве что пропавшею овцу на пастбище искать 😂😂😂

@FocusKnob 2 ай бұрын

Very good for sheeps

@paliins983 2 ай бұрын

Can you make a Meade 20x80 Astro Binocular or the Nikon 7247 Action 16x50 EX Extreme All-Terrain Binocular review please?

@FocusKnob Ай бұрын

If I get one I will

@paliins983 Ай бұрын

@@FocusKnob Thank you!, or can you make the Barska 10-30 level zoom binoculars, thats a recent model and I am thinking of buying it cause it has fully multicoated lenses, I would appreciate it.

@paliins983 2 ай бұрын

Nice review, I always wanted to know how clear and sharp the image could be through those binoculars, thank you, nice video.

@FocusKnob Ай бұрын

Glad it was helpful!

@pauldemore6888 2 ай бұрын

Great info and really helpful to see through them like that.

@FocusKnob 2 ай бұрын

Thanks. Just keep in mind the video is what the camera sees and not what your eyes will ultimately see. Different people have different eyes with different ability to focus.

@benpayne4663 2 ай бұрын

excellent

@FocusKnob 2 ай бұрын

Many many thanks

@pauldemore6888 2 ай бұрын

Maybe you can help me out. I’m finding my Binos to need Collimation and since I just HAD to get water proof ones they are covered in rubber. Seen a video on skipping the screw option and rotating the adjective lens itself to combine the images. Is this a terrible idea or my only shot? Thanks. Bushnell 7x50 H20 for reference.

@FocusKnob 2 ай бұрын

The problem with sealed binoculars is they are nitrogen purged. If you open it up you'll release the gas and your binoculars may no longer be fog proof. If you just bought it I would exchange it.

@pauldemore6888 2 ай бұрын

@@FocusKnob I sent them back to Amazon and they are sending me another exact pair. If those are crap too I’ll just make a final return and spend my money on another brand.

@pauldemore6888 2 ай бұрын

@@FocusKnob I appreciate your input!

@AhmadFauzi-pd2tb 2 ай бұрын

Pro = defect product Pro ed = revision 2.0

@trident8872 2 ай бұрын

This is not Schmidt pecham prisms because Schmidt pecham prisms are not cheap

@shem44 2 ай бұрын

Other than Celestron SkyMaster Pro ED 20x80 , what other choices do we have that have the same specs?

@FocusKnob 2 ай бұрын

There's the Orion GiantView ED 20x80. I've never tested it. It's less expensive, too.

@pavelhrivnak1130 2 ай бұрын

na 100% to neni ED sklo podivej se na okraje obrazu má modrý nádech a je smazaný

@FocusKnob 2 ай бұрын

You can't determine that based on the video since the camera's own lenses alters the binoculars' own lens performance. It also depends on the distance between binoculars and camera. The video is a good demonstration of what you can achieve with digiscoping. The video does not reflect what you can see with your own eyes.

@joaosilvaentretenimento4831 2 ай бұрын

Skymaster celestron 20x80 minha paixão.

@joaosilvaentretenimento4831 2 ай бұрын

Sou apaixonado por um desse, mas ganho pouco nunca da pra comprar, um dia Deus me ajuda. Ou alguém,Rsrsrs

@dmitryipatov9701 3 ай бұрын

hello. Thank you for such a great review! I have a question. How is it optically compared to Carl Zeiss Decarem or Jenoptem?

@FocusKnob 3 ай бұрын

I've never tried those so I can't comment.

@neilenglish7433 3 ай бұрын

The Oberwerk SEs really rock. The smaller 8 x32 model is a real gem too. Congrats!

@FocusKnob 3 ай бұрын

Now you got me thinking. Thanks for watching.

@mrmaxaxl 3 ай бұрын

Very impressive image! Crisp and clear with nice contrast too! You did a great jobb filming through them 👏

@FocusKnob 3 ай бұрын

It's not exactly what you would see with your eyes but it's a good sample of what you can capture with a camera. Thanks for watching.

@DakaDaki-wd9zc 3 ай бұрын

How much price this jummell

@FocusKnob 3 ай бұрын

About $200

@DakaDaki-wd9zc 3 ай бұрын

want buy sky master bincolars 25×100

@DakaDaki-wd9zc 3 ай бұрын

I think that same price or nno

@DakaDaki-wd9zc 3 ай бұрын

Thank you sir about information

@jamesconnors5653 3 ай бұрын

Beehive!

@Kevin-rd2ew 3 ай бұрын

Do you have this product for sale?

@FocusKnob 3 ай бұрын

I don't.

@Mixedpuppy 3 ай бұрын

Yeah after looking at this model a little online there is no relation to the Company DDoptics. Kind of obscure company.

@FocusKnob 3 ай бұрын

I couldn't find a website for D Optics so the brand probably just existed on Amazon.

@Mixedpuppy 3 ай бұрын

This is from the German company DDoptics right? They design decent Binos. I’ve been eye balling their Pirschler Gen III series 8x56 for low light hunting/astronomy. Heavy for hunting though. I believe they have their products mainly made in Japan including the glass. Their lower end stuff I would assume China. The catch is most Bino companies use 3rd Party manufacturers and they often have competitors using the same manufacturers putting out batches appearing suspiciously similar in style and make. The only companies I can think of that make most of their own lenses and Binos are a certain number of European companies but even some of them like DDoptics use 3rd party manufacturers for their lower end stuff.

@FocusKnob 3 ай бұрын

Comparing logos I see no relation between the two. You are right most binoculars are probably made by only a handful of factories who license a particular design. So you get many look-a-likes.

@goodwood7247 3 ай бұрын

NOT from DDoptics!

@Mixedpuppy 3 ай бұрын

Good review especially your analysis on the Chromatic Aberration between the two versions.

@FocusKnob 3 ай бұрын

Thanks for the feedback.

@ldb45 3 ай бұрын

BRO THATS ACTUALLY STILL REALLY GOOD

@FocusKnob 3 ай бұрын

I need more light

@unknown-tz6ex 3 ай бұрын

Celesatron 130 eq vs this?

@FocusKnob 3 ай бұрын

this

@johnstark8116 3 ай бұрын

Really appreciate your video mate, good stuff 👍 What would you think in comparison for Astro observing on going down to the 15x70 pro ED for a gain of 0.7 focal but losing x5 magnification?

@FocusKnob 3 ай бұрын

Dropping down to 70mm in aperture robs you of about 23% light gathering capability. On the other hand the 15x70 gives an exit pupil of 4.7mm compared to 4mm on the 20x80 binoculars. If everything was equal then a bigger exit pupil may give the appearance of a brighter image if your own eyes' pupil can at least match the 4.7mm exit pupil. I've read young eyes can open up to 8mm while older people not so much. You also frame more of the sky at once with a 15X.

@johnstark8116 3 ай бұрын

Thanks very much, I wasn't thinking that it could be as much as 23%... I'll do some research and see how much a x5 drop represents in magnification. Also what field of view is best usable in astro. It is also true I'm not getting any younger :) not saying price and weight could influence the final verdict. Appreciate your help there 👍

@FocusKnob 3 ай бұрын

If you take an image and divided it into 20 sections. 15 sections would be what you would see with the 15x binoculars. There are two camps when it comes to binoculars and viewing the night sky. Some prefer the lower magnification as it allows you to see more of the sky at any moment. Others prefer a higher magnification to see things closer. When looking at the moon I prefer the higher magnification.

@johnstark8116 3 ай бұрын

Thanks mate for this video. I also watched your video on the 20x80 pro ED Celestron and I'm wondering which ones you'd say are best for star gazing? I'm leaning towards the skymaster pro ED as they correct chromatic aberration...

@FocusKnob 3 ай бұрын

The Pro ED will certainly give a cleaner image. The 25X gives you an extra 5X magnification. You have to weigh which feature is a priority.

@johnstark8116 3 ай бұрын

Yes that's my reflection... Thanks for adding feedback, I lean towards the better image to be honest

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