Hi I'm supposed to be cleaning up the lab but I thought I'd do a video on the follow up on the Eakins microscope here because I said I'd do a video if I got some more lenses to it and I've got a couple of Barlow lenses down here which we'll take a look at now. This was a very popular video. This microscope it's not. It's a different beast to the Sugano but it was to really cool in that the depth of field that you can get in the auto zoom function of the boxes anyway I'll link in the video.

it's a it's a very cool microscope for about 500 US bucks. So anyway I said that one of the problems with this is the field of view. How much of the board that you're working on can you actually view at the widest angle for this lens at the hundred millimetres working distance? Which is what you need to get the full zoom on this thing. And as you can see, it's about nineteen millimeters across there.

that's the absolute best you can. You can get a bit wider than that, but then you can't like zoom all the way with LBJ like this and go right in and zoom like that. So you know really, it's nineteen millimeters effective working distance. and of course you can just tilt your board like that and zoom in with that focus box there.

It's beautiful anyway, so that really wasn't good for general purpose. It's great for really ultra fine stuff. So what I did is I ordered from Eakins I got a couple of these I remember I think they were like 3040 bucks each I don't know I'll link them in down below. We've got two barlow lenses here not point three, five x and not point five x barlow lens and there we go for those playing along at home if you want a good look at that and I just got both just in case.

But the 0.35 is going to be the best, so let's whack on that Barlow lens onto the bottom. It'll just screw in here like this and it should increase our field of view. So without having to change anything else without having to change the well, the working distance is a bit lower now, but let's may we can put it back to our 100 milimeters that we have before, but instantly, bingo, we're up from nineteen millimeters up to twenty six millimeters, so that's you know that's more usable than what we had before. And of course you can still tilt this thing like this.

It looks like there's no distortion in that lens. like no, like barrel distortion at the edges may be absolutely minimal, but yeah, it's still still pretty funky now. Of course we can go wider than that of course by just getting a greater distance like this. and I can keep going like this and it's still going to work so we can get like that's as far as I could readjust it.

but then what if I got there I've got 250 millimeters working distance for example and we're now up to 37 38 millimeters field of view there, which is good enough. I mean let's put a real board in there, shall we? I'll talk about this board in a second and there we go. That's pretty good, right? These are like Oh 805 s are they? Yeah, these are onf is that's the kind of general purpose magnification that you want and at this hundred and fifty millimeters working distance will find that. we probably don't get a very good zoom range.

or do we? Oh yeah, I can still do it I'm amazed at that actually. Oh yeah, it's it's yeah. it's focus hunting now. so I can't do it.

So 150 millimeters right? That's probably the best you can do. Let me actually find the optimal distance, but it gets even better. Look at this. Look at this working distance.

What is it? We're talking three hundred and thirty millimeters working distance here. With this point, three five Barlow Lens This is at the maximum widest our angle and look at this. absolutely 72 millimeters working with we can get that almost setting Well, you definitely get the entire width as that board in there. That is absolutely fantastic.

And we haven't even reached the extreme limit of the zoom in yet because we can go like this. Let's go in, let's keep zooming in. I've got to even go to a greater working distance I've got to adjust this up even further. Check out that.

that's insane Like I've got that right to the Maxim. Look at the working distance that is 401 Oh 375 millimeters working distance there and I'm not quite at the maximum zoom yet, but we can go right up to Like that's like 40. you know, at like 13 and a half. Almost four to say, 13 millimeters working our field of view there.

And yeah, as I said, that's probably the maximum there. But let me let me try this. see if our focus box still works at this. Insane.

Should ya look at that? I mean imagine. Look I'm gonna do something extreme I'm gonna do something crazy I'm gonna watch this look I'm tilting that board up like that. Let's go right up here like this. Can it? Can it refocus? Oh that's that's crazy.

That's crazy. Feel that I can focus on the end of that. That's just nuts. I've got that near vertical, near vertical and I can focus I Can autofocus within at least a hundred and fifty millimeters range.

I Could go further, but that's just absolutely incredible with that point. Three five Barlow Lens Oh wow, that 200 Is it gonna be 300? Yep, I can't even hold that still long enough. That's 300 millimeters autofocus. I Well, it's not depth of field, but the range over which it can focus 300 millimeters at what was at 370 millimetres like that just by adding the naught point 3 5 Barlow lens That is nuts.

Anyway, why I wanted to put why I wanted to show you this board is because I got one of these you know HDMI splitter things. you know it takes HDMI in and gives you two HDMI outs because I had problems hooking this up this camera up to my A VI O 4k HDMI capture device which is down there which works fine with Mite Igano but it doesn't like my it doesn't like this Eakins or Eakins microscope at all. The Hdmi output does it so I can't capture the HDMI output first. So I thought this might Rhian code it for me but unfortunately it doesn't So what we've got in there is a lattice.

Here's our HDMI input. little impromptu, you tear down. we've got a lattice semiconductor. What is that I don't know.

is that a Si I don't have to look that one up. Is that a CP or D or a um FPGA I don't recognize that number anyway and then we've got a pair recom HDMI MUX chip which then you can see the what? Well there we go. it's being a bit fussy. it's been really pants.

if I got it too high I might just have it to ridiculous odds all over the shop I know it's making a fool out of me. Nope, Not there. We go. here we go.

Got some focus hunting problems in this thing but yeah like this is just extreme working distance. Anyway, it's got a parry comm chip I'll probably put it in I Got the datasheet over here and I thought it read like it my tree encode it or something like that. but anyway it's got yeah so it's a swear like it's a MUX or d-max thing that will you know a dual driver in there and it doesn't work either so it just doesn't detect the HDMI output of the Eakins our display err Eakins microscope at all. So that's a bit of a bummer.

But anyway I just wanted to show you that and of course the naught point five will be somewhere in between. That's so you know. The 0.35 works fantastic though with very little distortion and it's very cheap addition to this thing. So if you are going to buy one of these and I put the link down below, you have to get the correct Ekans microscope because they come in many different diversions.

So I'll put the link into the proper Aliexpress store down below. but yeah, it's just get the point 3 5 adapter. So we have the Not 0.5 now and we could go in there and play around with that, but it's it's not going to be as good. And yes, we can actually unfortunately doesn't have the threat on the bottom.

You can't actually put both on there and that would effectively give you. But we start line looks like we're starting to see just like I might. Igano starts to give you a bit of barrel distortion there at the wider, at the wider angle. Let's yeah, like the the Tigana has got real problems in that, but the Takano has a massive zoom range.

you can see it sort of bit a barrel distortion on there on the board so not much you can do about now. Yeah we can't actually put ball, just only use one and there we go. So from the point 3 5 to the point 5 I just went from about 62 millimetres field of view to about 70. so you know you can get either one of those adapters and it's going to work a treat.

but for like I don't know what was it I think it was, was it 50 bucks for 2 or was it $50 and I might have been 50 bucks for 2 or something. Anyway they're they're pretty affordable and they seem to be really good quality. so I don't know where they're made or whatever. it seems to have like some artifacts in there.

maybe I have to clean it or something. but anyway, um yeah I don't see any major barrel distortion and and that sort of working distance is unbelievable. So anyway, that's a huge upgrade if you're going to do like more practical stuff. I recommend that you at least get one of those lenses to give you a wider field if you.

Unfortunately, it's not nearly as wide as the Tigana because really like, that's the smallest. Oh well, that's the biggest thing that I can put under there. What is that size of an Arduino shield? You know, not much bigger and that's the maximum field of view that I can get on that. So if you want to look at bigger boards.

So from my video production stuff, this isn't as still isn't as good as the Tigana Just the the range, the width and the field of view width change based on the 40 times zoom of this thing that the Tigana still like. kills it. But this is an absolute brilliant microscope. I'm still thoroughly impressed by this and the new Barlow Windsor's work.

so anyway, I hope you liked that. Update If you did, give it a thumbs up. As always, links to the Eakins microscope down below. Catch you next time.