30mm eyepiece

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Dual-barrel telescope

The dual-tube telescope is a useful astronomical observation tool. You can use it to watch a game, concert, or birds in the sky. You can also use it to enjoy the galaxy, the crater on the moon, several satellites around Jupiter and countless stars 2 million light years away. Many people mistakenly think that the dual-tube telescope is not used for astronomical observation. In fact, it is a favorite tool of many senior astronomical observers. For beginners, It is the entrance to astronomical obse

Observation on the use of the target in the solar system by anti-Tian-wang (i.)

goal in the sky to, for example, the moon or Jupiter, the mobile phone lifted the target, the app in the corresponding target is coincident with the actual target in the sky, consistent with the location of the app is accurate, Then take the back of the mobile phone affixed to the polar axis mirror, the equator, so that the app in the North Star in the middle of the screen, repeatedly determine, adjust.4. Adjust the level of the leg (tripod), my device comes with a bubble level. In short, the l

8 Most augmented reality type head wear equipment set

may not be able to like Google glasses in some ordinary occasions to wear. Configuration, Vuzix M100 smart glasses using the Android 4.0 system, the device contains a virtual display eyepiece, resolution of 400*240 pixels, this is a fixed design screen, and Google Glasses miniature projection principle is not the same. But visually, the screen is 14 inches from the user's eye, which is actually equivalent to the size of the 4-inch smartphone display

Chapter 2 Open book--28

I kept my voice indifferent. "May I?"I try to make my voice look less abrupt, can I try?I try to make my voice seem indifferent. "May I have a look at it?" ”He smirked and pushed the microscope to me.He giggled and pushed the microscope to me.He pie mouth The bad laugh and pushed the microscope to me.I looked through the eyepiece eagerly, only to be disappointed. Dang It,he is right.I looked eagerly through the ey

Canon 7D camera Switching "single autofocus and artificial intelligence servo autofocus" for a shooting tutorial

control button" in "C.Fn IV: Operations/Other". Also move the selection box to the depth of view button. Press the Set button to pull up the relevant content, then select "Single AF ⇔ artificial intelligence servo autofocus". Press the Set button again to complete the setting. Like using two cameras from the show motion by the camera body It is not easy to switch autofocus mode during the filming process. Although the operation itself is not complex, the photographer's eye has to be

Canon SX60 HS adopts image processor and picture format parsing

To the photographic enthusiasts for detailed analysis to share the Canon SX60 HS adopted image processor and picture format. Analytical sharing: Canon SX60 HS employs DIGIC 6 image processors. According to the information provided, you will be able to understand the Canon SX60 HS using what image processor. Canon for SX60 HS equipped with the fuselage of the ceiling flash, so that even without professional lighting equipment can be photographed with the normal exposure of photo

Use Photoshop to modify images to meet your submission requirements

relied on by the small aperture, but by fine-tuning the microscope. Note that the camera channel and the eyepiece observation channel should be consistent, that is, the most clear under the eyepiece is also photographed the clearest, so as to facilitate the photo. When taking pictures, the camera should choose the maximum aperture and wide angle. Do not use telescopic zoom, which makes the field of view sm

SketchUp How to design a long leg bench?

SketchUp How to design a long leg bench? First, the bench surface production 1, Input Rectangle command (R), Value: 300mm*1500mm. 2, Input stretching command (P), Value: 50mm, 3, plate bottom positioning, input measurement command value (T): 150mm value: 50mm Second, stool foot production 1, Input Rectangle command (R), Value: 260mm*500mm. Enter the measurement command value (T), the bottom of the plate down the value: 100mm,30mm

Window program design-progressive

30mm-width, 30mm-high image, you don't need to calculate how many pixels the 30mm-height image has on your computer. You just need to replace it with wm_lometric or something else. The ing between Y and Y is the opposite of that of device coordinate. However, it is best to use wm_isotropic and wm_anisotropic, which makes our ing coordinates extremely flexible. Y

[Post] Shi binpai Mobile Robot-robot production tutorial

images in the new window/nctrl + mouse scroll wheel to zoom in/out ';} "border =" 0 "> First (), cut two metal strips (296 long) with a size of 50mm x 25mm and a U shape horizontal plane) and two 30mm x 25mm angle alloy strips (300mm long)-L-shaped metal strips for short. Then marks the front and back sides of the two U-shaped metal rods. The height of the metal strip from the ground depends on the diameter of the wheel. Drill a 10mm diameter hole on

Illustrator design babufish painting tutorial

circle appears in the plot area. Figure 2 "Ellipse" dialog box 4. Draw two more circles in the same way, one width and height 100mm, and the other 30mm, i.e. 100mm and 30mm in diameter respectively. The plot area then has three circles, as shown in Figure 3. Don't worry about their position first. Figure 33 a Circle 5. Click outside the selected graphic to

Talking about the making method of the grounding wire in the computer room

than 2m, it should be placed around the ground with salt 8kg, about 30kg of wood carbon and add water to reduce the grounding resistance. If 2 and more than 2 grounding poles are used, the spacing between poles is less than 0.5m to reduce the Earth's diaspora resistance. In soils with strong corrosive behavior, copper or zinc-plated grounding electrodes shall be used. At the same time, grounding should not be buried in the garbage layer and ash layer area, laying in the ground of the earth shou

Construction elements of integrated wiring in automatic fire alarm system

the cable shaft or ceiling with fire protection measures in the closed groove. 4, fire control, communication and alarm lines and fire automatic alarm system transmission line comparison, more important, so this part of the threading of the choice of more demanding, only in the dark to allow the use of flame-retardant hard plastic pipe, in other cases can only use metal pipe or metal wire groove. Conduit for fire control, communication and alarm lines, generally required laying in the non-comb

Tolerance and Cooperation Plan 1

Teaching Plan on tolerances and cooperation 1. Concept of interchangeable Definition of interchangeable Swapping refers to the process of selecting one part from a batch of identical parts, which can be assembled into machines or parts without Configuration Modification and meet the performance requirements of products. Interchangeable meaning Interchangeable parts are conducive to organizational collaboration and professional production. It is of great significance to ensure product quality, re

Graduation thesis format

university graduation thesis (Design)ThePage;V (see Appendix A.3 ).2. Margin: The top margin of the layout is 30mm, the bottom margin is 25mm, the left margin is 30mm, and the right margin is 20mm. The line spacing is 1.5 times the line spacing.3. Page number writing requirements: the abstract and directory pages are written in upper-case roman numerals, such as I, II, III, IV ,....... From the beginning o

Talking about the customer's point of view

several options: standard height, 30mm or 60mm. Well, because most of the time I'm still on the road, I can totally use the standard height, but guess what--my wife needs a ladder to get in now because I've raised it 60mm.So, when it comes to my drive, it seems that I have no solid view of the limitations required by law or common sense, but when the problem is choosing a RAID card, I do have my fixed opinion (just like most customers).You guessed it

Optical fiber failure: solutions to common problems of Optical Fiber splitters (1)

but does not stop, and the screen is stopped on the "set gap ". Solution: 1> press the "reset" key to reset the system. 2> open the wind shield and enable the left and right pressure plates respectively. Perform the following checks in sequence: 3> check for fiber breakage. 4> check whether the optical fiber cutting length is too short. 5> check whether the fiber slot matches the optical fiber. And perform corresponding processing. 5. The optical fiber can be properly reset. When the gap is set

How can we understand the electrical wiring of so many cables ?, So many electrical wiring

. Bend Pipe Cut the pipe size should first bend the pipe to be bent before the wire can be set, otherwise it will be in the bend when the thread has been set Wire Broken. Before Bending, you need to bend two or more pipe wires onto the wire and bend again. Pipe bending, it is best to use a pipe bending, in normal temperature can be directly used for bending the pipe bending specifications of 30mm. 30mm thre

Knowledge popularization of water conservancy, flood control, and drought relief

: rainfall within 12 hours is less than 0.2-5mm, or rainfall within 24 hours is less than 10mm; moderate rain: rainfall within 12 hours is 5-15mm, or the rainfall within 24 hours is 10.1-25mm; heavy rain: The rainfall within 12 hours is 15.1-30mm, or the rainfall within 24 hours is 25.1-50mm. Average basin rainfall: It is also called area rainfall. In hydrological work, we often need to calculate the average rainfall on the whole basin. The most co

28th: "Don't tease, Mr. Feynman."

compare 2 sets.Mind-MeasuringThe principle is not complex, but requires a lot of practice.Amateur scientistThe eyepiece of the microscope can also be used as a magnifying glass for observing ants or aphids, but the microscope has always been treated as a whole.It is also interesting to experiment with the use of slides to ferry ants.Part III Feynman, bomb and army test houndA person's sense of smell, although no dog developed, but also can sniff out

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