Introduction of a 0.5X lens camera:
On iPhones that have two or three rear cameras, one of the 0.5X reduction lenses for the camera is typically ultra-wide. If you set the zoom level to 0.5x, the iPhone uses the ultra-wide camera to take photos The iPhone SE (2nd generation) has only one rear camera.
Key Features
- Model: A3RDA50
- Reduction: 0.5X
- Focal length: Adjustable
- Mounting size: Standard C-mount male 1 inch x 32 tp camera
23.2mm in diameter ocular tube - Total height: 60 mm
- Net weight: 72 g
2. What is the difference between a 1X and 0.5X camera?
- iPhone 11 Camera app use the Zoom icons (0.5x, 1x, 2x) to switch between lenses Tap the 0.5x icon of
- switch to the Ultra Wide iPhone lens Tap the 1x icon to switch Wide ES. And tap 2x icon switch Telephoto
- lens (only available on the iPhone 11 Pro and 11 Pro Max)
3. What does X mean in camera?
X-number zoom ratio lens used measure difference from the wide, narrow, extreme lens You will see listed advertising number followed by x, such as 3X or 10X
0.5X C-mount Reduction Lens for Microscope Cameras
- ₱ 3,000.00
▪ 0.5X C-mount Reduction Lens for Microscope Cameras
▪ Fixed Microscope Adapter
▪ FMA050 18X0.50=9 1/2”~2/3” 18X0.50=9
▪ Fits into the trinocular port of all Howell Microscope
▪ Decreases magnification by half and doubles field of view
▪ Standard C-mount attachment
4. What is the minimum camera-to-object distance for most lenses?
Minimum Camera Distance:
Classic standard lenses from one manufacturer, for instance, can have a close-up limit of 200 mm, whereas lenses from a different manufacturer have an MOD of 350 mm. In principle, the minimum object distance depends on the focal length and thus strongly on the depth of field of the lens
5. How to Mount a Microscope Camera Over the Eyepiece
Microscope Camera Eyepiece:
- Microscope digital cameras typically have c-mount threads on them and mount directly to a c-mount
- adapter. A c-mount adapter has a universal 1″ thread on it and each c-mount adapter is made specifically
- to work with its corresponding microscope For example, you must use the Motic c-mount adapter that
- was made specifically for your Motic stereo microscope. It would not work to use a Richter Optica c mount with your Motic microscope
6. What if my microscope does not have a camera port or C-mount?
- If you have a monocular microscope (one eyepiece) or a binocular microscope (two eyepieces) that was not made for camera connection, then you will not have a camera port (known as a trinocular port) or a c-mount adapter A c-mount adapter is the microscope adapter that fits on a microscope camera
- trinocular port If you have a monocular or binocular microscope, you still have options to connect a camera. The easiest way to connect a microscope digital camera in this situation is directly over your eyepiece. Using a Microscope Over-Eyepiece Camera
- Adapter, you will be able to thread a c-mount
camera directly onto the adapter and slide it over your microscope eyepiece
What Lens Do You Need?
- The microscope over-eyepiece camera adapter has a focusing lens built into There
There are two different options of lenses, and they are based on the type of microscope camera you will use. The lens is made for cameras with a 1/2″ chip and those with a 1/3″ chip. - The lens adjusts for any added magnification that a camera would add to your microscopy image so
- You can view your sample on the camera just as you do through the eyepieces of the microscope
7. Which adapter size do I need?
Adapter Size Need:
- The microscope over-eyepiece camera adapter is made to fit a wide range of eyepiece sizes
- The inside diameter of the adapters available include 28mm 30mm 34mm 35mm and 38mm The image below shows the adapter size measurement. You will want to measure the outside diameter of your microscope eyepiece at its widest point and choose your adapter accordingly
- Typically, if you are using a student monocular microscope, you will want a 28mm or 30mm adapter And if you are using a stereo microscope, most eyepieces for a stereo microscope will require a 35mm or 38mm adapter
8. Features & Specifications:
1. Power: 0.5x 2. Sensor Compatibility: 1/1.8″ to 1/2″
3. Compatibility: Olympus BX, CX, MX, STM, SZX, IX, GX Series Microscopes
4. Camera Mount: C-mount (1″ / 25.4mm diameter)
5. Microscope Mount: 42mm
6. Manufactured under ISO 9001 Quality Control Standards
7. Warranty: 1 Year
9. How to make a 0.5x camera?
- Make a 0.5x camera:
When using a camera with an image-sensor smaller than your eyepiece field- number, it is common to use a reduction lens, which reduces the size of the image projected by the objective lens so it will better fit the sensor - Cameras and Eyepieces
A rectangle’s diagonal and a circle’s diameter
Since digital cameras use rectangular image-sensors and eyepieces are round, there is no direct equivalence when it comes to FOV The best we can do is choose the most comparable dimensions, which is still a bit subjective I choose to use the sensor’s diagonal because it would span the diameter of a containing circle. Calculating the diagonal requires a nostalgic revisiting of the Pythagorean - Pythagorean Theorem: a2 + b2 = c2
Finding the image sensor’s diagonal will give you a rough idea of how the image will compare in size to your eyepieces (using the field number). If you are determined to see the same FOV when using a camera and eyepieces, then you should consider using eyepieces with field numbers comparable to The image-sensor’s diagonal One accessory that will make this easier is a reduction lens. - Reduction Lenses
- A 0.5X reduction lens
When using a camera with an image sensor smaller than your eyepiece field number, it is common to use a reduction lens, which reduces the size of the image projected by the objective lens so it will better fit the sensor. The rule-of-thumb for choosing a reduction lens is to match the lens magnification (which would be fractional 0.5X) to the die-size o image sensor The die-size, which represents the size of the entire sensor-die, is not the same as the size of the photo-sensitive portion of the sensor so will not match the listed dimensions used in calculating FOV. The die size often
represented as a fraction such as 1/1.8.” As confusing as this may seem, it’s nevertheless an industry standard 1/1.8″ sensor that is best-paired with a 0.5X reduction lens 1/3″ sensor with 0.3X lens Image Sensor of 1″ or larger and would not use reduction lenses unless the microscope’s
FOV exceeds 1″ which would be one rare
10. Considerations and Limitations of 0.5x lens Camera
Considerations
- Field of View: A 0.5x reduction lens effectively doubles the field of view compared to a standard
lens, making it suitable for capturing larger areas in a single image. This is particularly beneficial
in microscopy where a broader perspective is often required - Sensor Compatibility: The choice of reduction lens should be influenced by the
camera’s sensor size. For instance, a smaller sensor might necessitate
adjustments to achieve optimal focus and avoid issues like vignetting or barrel
distortion. Users have noted that for a 1/2.9″ sensor, a 0.5x lens often works
better than a 0.3x lens, which can be harder to focus and may introduce more
optical distortion. - Adjustability: Some 0.5x lenses, like the OMAX model, offer adjustable focal
lengths, which can enhance usability across different microscope setups and
objectives. This feature allows for better alignment with the optical path of the
microscope.
Limitations - Optical Quality: Users frequently report that while the center of the image may be sharp, the edges can suffer from chromatic aberration and distortion, necessitating cropping to achieve a usable image. This can limit the effectiveness of the lens in applications requiring high fidelity across the entire field of view.
- Focus Challenges: Achieving focus with a 0.5x lens can sometimes require
additional adjustments, such as using shims to raise the lens. This can complicate
setup and may not be straightforward for all users. - Vignetting: Depending on the sensor size and lens design, vignetting (darkening)
of the corners of the image) can occur, particularly with smaller sensors. This
effect can detract from the overall image quality and may require postprocessing to correct
Conclusion
In summary, the 0.5x reduction lens can be a valuable tool for photographers and microscopists
looking to enhance their imaging capabilities It allows for a wider field of view and can improve
the alignment of camera images with what is seen through the eyepiece However careful
consideration of light loss potential optical aberration and compatibility with existing equipment
is necessary to achieve the best results
Here you can take look on another category of camera Ring Camera
