Monthly Archives: December 2019

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The function of Macro Switchover

Category:Uncategorized

There is an special button on SP AF 70 – 300 mm F/4 – 5.6 Di VC USD. It will help you take shoot easily, you can change your lens mode from normal to macro or otherwise on a second. Macro lens is very useful for small subjects at very close distances. They can focus much nearer than normal lenses, allowing you to fill the frame with your subject and capture more detail.

We call this button “Macro Selector Switch”. It is in under of Focus Distance Scale. It has maximum magnification ratio 1:2 (f = 300 mm, 0.95m). The significant concern is their zoom should be aligned to 180-300 mm when switching the macro selector switch from Normal to Macro and the focus ring should be aligned to 1.5 m to infinity to switch from Macro to Normal.

Saklar Lensa Tamron

macro switchover button

You should give extra attention  to the procedur to use Macro Selector Switch or Macro Switchover. These are turn the zoom ring to align the zoom between 180 and 300mm as the first step. Next, slide the button from the Normal to the Macro position. Now, the lens is macro photography mode. When the macro mode is implemented, the focus ring rotates continuously from infinity to the minimum focus distance of 0.95m and the magnification ratio reaches a maximum when the focus distance is 0.95 m at 300 mm. The magnification ratio at this time is 1:2. But,  the zoom ring can only be rotated over the range of 180mm and 300mm and angle of view can only be adjusted over the range of 180mm to 300mm.

There is an exception. It is unable operate when the zoom ring is between 180mm and 300mm. Always make sure to align the zoom ring between 180mm and 300mm before operating the macro selector switch.


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Maintain your favorite lens

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Camera lenses are big investments because you need to throw some money on them. And it is not cheap so, maintain your favorite lens properly is important thing because it can gives you longer and perform better. Before we go far to tips to caring your camera lenses, you should three main enemies of your lens. These are : dust, condensation and fungus.

Don’t clean your lens use shirt, napkins, paper tower or any fabric products are nor specifically made for optical glass, because it will damage your sensitive optical coating, it scratches the glass !. The best way to eliminate dust is use lens tissue, microfiber cloth or a specialty brush made for cleaning lenses or an air blower but, not compressed air. Don't touch lens with your finger !! It is the most basic simple important notice.

The most sensitive area to get dusty is sensor. Beside that, sensor also has sensitivity to debris and light. When you’re using interchangeable lens camera, there are much possibilities the sensor get dirty. The easiest ways to keep your sensor safe is to maintain a lens mounted to the camera. If you need remove it to pack or store the camera more efficiently, then make sure to use the body cap to keep the sensor is protected. When you need to change a lens on the fly, keep the opening of the camera face downwards as you do so, so there is less of chance the dirt, debris and moisture to come into sensor. It is also the best idea to preserve an air blower on-hand.

The other thing you should remember when you would buy camera and its lens is bag to save them. Bag is your investment also to get longer camera lens because it supports you to maintain your favorite lens. Buy a bag suit to your necessary to put your lens and make sure to clean it routinely. You can adopt the way to clean lens when you clean bag and you perhaps could put sillica gel on your camera bag to protect it from moisture but, don’t forget to replace it when it can’t hold and remove moisture.

The simple thing you should pay attention is put each piece of it based on the separator is provided on you bag. Don’t throw your lens away to your camera backpack and be sure to keep the front and rear caps on your lenses, as well as the body cap on your camera itself if there’s no lens attached and make sure you always keep your bag is clean, cool and dry to put your lens with good condition all the time.

If you need to clean your favorite camera lens easily you can bring your tamron camera lens to our service center.