Archive for June, 2008
Top 5 reasons to use a DSLR Camera
1. DSLRs can be instantly startup which has more advantages over a digicam as it will usually take several seconds to startup a digital camera, and then you may have to wait for it to focus.
2. DSLRs display less noise is a result of the larger sensor. With your typical digital camera, you may get only image quality at anything below the ISO setting. Whereas in your DSLR, you can actually make acceptable prints even at some of the highest ISO settings.
3. DSLRs use a sensors which translates the object taken directly to higher image qualities in terms of details, color depth, and dynamic range.
4. DSLRs are built to much higher standards, increasingly so as you get into the more expensive models of course. In overall, they’re more durable than a digital camera.
5. DSLRs are practically affordable by everybody now because the price of DSLRs will go down as soon as a new model arrives in the market.
What’s DSLR anyway?
A DSLR camera is the abbreviation for digital single-lens reflex camera that uses an automatic mirror system and pentaprism or pentamirror to direct light from the lens through the viewfinder eyepiece.
The basic operation of a DSLR is for viewing purposes. Basically, the mirror reflects the light coming through the attached lens upwards at an approximately 90 degree angle. It is then reflected by the pentaprism to the photographer’s eye. During exposure that is during a photograph is bring taken, the mirror swings upwards and opens the shutter to allow the lens to project light onto the image sensor.
Interchangeable lenses for DSLRs are built to operate correctly with a specific lens mount that is generally unique to each brand. Photographers often use lenses made by the same manufacturer as the camera body although there are also many other independent lens manufacturers that make lenses for a variety of different lens mounts.
The fact about DSLRs is that any DSLRs would produce a blurred image if there’s no lighting. Images produced during the night would often be not clear or may have less pixels. However, a DSLR in another hand, produced high quality pixels during the day. Besides, the optical zoom of a DSLR would again be better than a digital camera.
p/s: Feel the difference of photos in VanceTan Online because the author is currently using DSLR Panasonic Lumix DZ18
What is a DSLR anyway?
A DSLR camera is the abbreviation for digital single-lens reflex camera that uses an automatic mirror system and pentaprism or pentamirror to direct light from the lens through the viewfinder eyepiece.
The basic operation of a DSLR is for viewing purposes. Basically, the mirror reflects the light coming through the attached lens upwards at an approximately 90 degree angle. It is then reflected by the pentaprism to the photographer’s eye. During exposure that is during a photograph is bring taken, the mirror swings upwards and opens the shutter to allow the lens to project light onto the image sensor.
Interchangeable lenses for DSLRs are built to operate correctly with a specific lens mount that is generally unique to each brand. Photographers often use lenses made by the same manufacturer as the camera body although there are also many other independent lens manufacturers that make lenses for a variety of different lens mounts.
The fact about DSLRs is that any DSLRs would produce a blurred image if there’s no lighting. Images produced during the night would often be not clear or may have less pixels. However, a DSLR in another hand, produced high quality pixels during the day. Besides, the optical zoom of a DSLR would again be better than a digital camera.
p/s: Feel the difference of photos in VanceTan Online because the author is currently using DSLR Panasonic Lumix DZ18
Mobile waves may destroy you!
Mobile telephones are hand-held phones with built-in antennas and are popular within callers because they can be carried easily from place to place. Mobile phone radiation have raised health concerns especially due to the enormous increase in the use of its technology throughout the world. This is because mobile phones use electromagnetic radiation in the microwave range.
However, there are some recommendations for mobile phone users to minimise the effects of the microwave radiation emitted by mobile phones. Some of the recommendations include the following:
1. Try to keep mobile phones away from the body when not in use. i.e. not calling or receiving calls.
2. Use hands-free kits (usually provided by the mobile phone manufacturer) to decrease the radiation to the head and then the brain.
3. Reducing the usage of mobile phones and increasing the distance between the user and the radiofrequency source could reduce the impact of the waves on our body.
Mobile waves may destroy you!
Mobile telephones are hand-held phones with built-in antennas and are popular within callers because they can be carried easily from place to place. Mobile phone radiation have raised health concerns especially due to the enormous increase in the use of its technology throughout the world. This is because mobile phones use electromagnetic radiation in the microwave range.
However, there are some recommendations for mobile phone users to minimise the effects of the microwave radiation emitted by mobile phones. Some of the recommendations include the following:
1. Try to keep mobile phones away from the body when not in use. i.e. not calling or receiving calls.
2. Use hands-free kits (usually provided by the mobile phone manufacturer) to decrease the radiation to the head and then the brain.
3. Reducing the usage of mobile phones and increasing the distance between the user and the radiofrequency source could reduce the impact of the waves on our body.
As shown in the video, the mobile phones waves are so strong that they could even fly pop-corns to a few centimetres upwards. So, this proves that the waves may also penetrate through our brains if frequently used and may result in brain damage.
