I use a digital camera is Fuji S5000, 10 optical zoom, equivalent to 35mm camera focal length 37-370mm.Because I have engaged in the professional optical instrument design, the hands of a number of lenses and instruments, so I take advantage of these conditions additional lenses and long-term perspective photomicrography test results and some experience is to introduce to you.A lens can be DIY enthusiasts refer to the different shooting requirements can also be taken according to the choice of targets shoot additional mirror.For the use of other models of digital camera users can refer to.

the text of several concepts:

1) shooting magnification - which is a traditional concept, referring to an object image to the equivalent of 35mm film on thesize than the actual size of an object.For digital cameras, need converted into "equivalent" 35mm camera lens magnification.

2) Fit magnification - 17-inch display Full screen display of photographs, objects and objects such as the size of the actual size of the ratio.For my camera, shooting Fit magnification = magnification X14.7.Because the image on the screen can also be software to enlarge, so I can use the magnification could be greater.

3) macro photography - the camera from the object closer to photography, the traditional age can also have a clear numerical requirements, digital cameras, difficult to define.According to the different lens and object-image ratio can be divided into three categories:

  • photography at close range: from 0.5 meters away from the intake until the shooting magnification of a range of times during photography.
  • Zoom Photography (also known as super-macro photography): shooting magnification to 10 times for a photographic
  • photomicrography: shoot more than 10 times magnification photography.


4) The article mentions the camera focal length is the actual focal length equivalent to 35mm in brackets refers to the camera focal length.For Fuji S5000, the latter is approximately equal to the former multiplied by 6.5.

Macro Photography

reverse the plane focal length f = 210mm lens

this plane lens is designed to make desktopprojector when the samples Huaguang card, focal length of 21cm, aperture 1:4.5.From the theoretical calculation, reverse the lens focal length f = 210mm after the shooting magnification of 0.18-1.8 times, belonging to macro close-range photography and to enlarge the scope of photography.

Fuji S5000 digital camera with focal length f = 210mm lens connection diagram of the plane

Fuji S5000 digital camera with a separate shooting results: dragonflies, focal length 5.7 (37) mm

additional use 210mm lensAfter the shooting the effect of a: the camera focal length 25 (162) mm

dragonfly head, the focus in the forelegs, the focal length 57 (370) mm

dragonfly head, the focus in the" shoulder ", the focal length 57 (370) mm

when shooting dragonfly dragonfly ties in with the filming finished on the fly by.Additional use of 210mm lens to the film remake: Combining online experiences, and use this lens and 3.5-inch floppy disk plus paper tube made of a film remake of devices.

Summary : This lens image quality is satisfactory.Target shooting when the appropriate size is applied.In particular the film remake, Resolving capacity of a good, all my films are shot with this remake has become digital photos.

reverse 58mm header

this lens is a dedicated camera lens, focal length 58mm, made seagulls, Pearl River, peacocks and other SLRs are equipped with the standard specificationshead, aperture 1:2.From the theoretical calculation, reverse the lens focal length f = 58mm after the shooting magnification of 0.47-4.7 times the lens diameter by the restrictions section in the low times are not well used, the actual shooting can be a good imaging magnification in the3-4.7 times, belonging to enlarge the scope of photography.

This is a shell demolished the situation after the

Fuji S5000 digital camera with focal length f = 58mm camera lens connection diagram

Fuji S5000 digital camera with a separate shot of the bracelet, Macro

additional use 58mm camera lens capturedbracelet

Fuji S5000 digital camera with a separate shooting of flies, Macro

additional use of 58mm film camera lens fly



additional use of 58mm film camera lens fly head

additional use 58mm camera lensdragonfly head shot

additional use of 58mm film camera lens is the head of the dragonfly

additional use of 58mm film camera lens is the head of the dragonfly

additional use 58mm camera lens captured dragonfly wings

58mm lens focal lengthbelong to a lot of people have a "header", is strongly recommended that conditional enthusiasts reverse, with a small camera connected to shoot, try super macro effect.

additional use of f = 28mm camera lens

In theory, with f = 28mm camera lens as an additional mirror, magnifying make to the 1.32 -13.2-fold.However, subjects taken by the caliber and limited demand, digital cameras, low magnification focal lengths can not be a good use.The range generally used in high-powered digital camera focal lengths belonging to enlarge the scope of photography and photomicrography.

f = 28mm lens photography

Fuji S5000 digital camera with focal length f = 28mm lens of the connection diagram

Additional taken after using the 28mm camera lens effect

fly head

Flies Head "/P>

FliesThe following are the eyes nose?

with description: The Fuji S5000 then SONY0.7 times the wide-angle shots

The purpose of the use of wide-angle lens to expand shooting range, the principle isshorten the overall focal length.Therefore, the minimum focal length in digital cameras, carried out a shooting comparison, no other focal lengths.

use SONY0.7 times the wide-angle lens andconnecting ring

the SONY0.7 times because of the original thread is a 52mm wide-angle lens, while the Fuji S5000 connecting thread is a 55mm tube, so designed and manufactured a connecting ring to connect the inner ring thread for 52mm, external threadto 55mm.

Fuji S5000 digital camera with a separate shooting effect (on the right) and the use of SONY0.7 times taken after the effect of wide-angle lens (left) Comparison: To compare the image without any modification of treatment.


This chapterreleased:Design and Material (http://www.q60.org),visit the above web site.