ques about macro filter

[life viewer]

Hi newbie here,

I have done few kind of shots this few months and I find that I am quiet interested in close up/macro (but not very sure since I am still very new in photography) so I am not planning to invest on macro lens, but to further my passion in macro I plan to buy close-up filter.
Here is my ques

1. what does this mean +4 62mm filter ? I read that +4 stand for 4 dioptre so what does
62 stand for?
2. what kind of close up filter I can use on my 18-55 standard lens from nikon?
3. what is the max and min distance I still can focus if I attach that filter on my lens?
4. what is the magnification?
5. I also read about The single element close up filters and dual/multi element
close up filter what is the differences?
6. lastly price, brand and where to buy?

thank you

 

[night86mare]

1.62mm is the thread size

every lens got different diameter for the front part right.. so if your lens is super big then will have bigger thread size.. if more compact will have smaller thread size



2. check your thread size, this is the most important. other than that i guess it depends on how big a magnification you want

3. depends on the dioptre of filter you get

4. refer to 3 answer

5. the single element will not have such good quality, and will cost cheaper. size wise the single element one is USUALLY smaller as well

6. for single element i think hoya is pretty decent, rather reasonable price, last i bought for 58?mm was ~$20, less than that by a bit. for dual/multi can consider raynox. google for mcgill or what.. or you can search clubsnap for it.. sprintist86 has been getting good results with his raynox, so i'd say it's pretty decent. though not sure if you should be using it on a 18-55.. though definitely you could

 

[zac08]

You should be looking at 52mm thread filter size since you mentioned the 18-55mm lens.

You can also consider using a reversed 50mm lens using a BR2A and BR3.

 

[life viewer]

You should be looking at 52mm thread filter size since you mentioned the 18-55mm lens.

You can also consider using a reversed 50mm lens using a BR2A and BR3.

Thanx 4 the reply but what is "BR2A and BR3"?

 

[ExplorerZ]

Thanx 4 the reply but what is "BR2A and BR3"?

BR2A, a adpater for you to mount your 52mm reversed... screw thread onto the lens mount while the mount face out...
BR3, not needed unless to you want to mount filter to protect the lens mount..

 

[LittleWolf]

1. what does this mean +4 62mm filter ? I read that +4 stand for 4 dioptre so what does
62 stand for?

focal length f=1/4 m, 62 mm thread

3. what is the max and min distance I still can focus if I attach that filter on my lens?

Maximum distance = focal length of closeup lens (i.e. 1/4 m), measured from the lens. Minimum distance depends on the minimum distance of the lens.

Edit: the minimum distance cannot be calculated without detailed optical specifications of the lens (which are usually not given). Even if one could calculate the distance, it would not be clear where to measure it from.

4. what is the magnification?

With the camera lens focused at infinity and set at focal length f0, the magnification is f0/f. I.e., to get 1:1 magnification with this closeup lens, you'd need a 250mm tele lens on the camera.

5. I also read about The single element close up filters and dual/multi element
close up filter what is the differences?

Multi-element systems correct for some abberrations. Typical are achromatic doublets which correct for chromatic abberration (colour fringes).

 

[sherchoo]

You should be looking at 52mm thread filter size since you mentioned the 18-55mm lens.

You can also consider using a reversed 50mm lens using a BR2A and BR3.

When the 50mm is reversed, how do you control or at least open the aperture wide?

 

[zac08]

When the 50mm is reversed, how do you control or at least open the aperture wide?

Using the aperture ring of course...

I tried stopping it down for some of the shots, but the lower amount of light getting thru limits my stopping down to about f8 or so... any smaller and I can't see what I'm focusing at already.... :bsmilie:

 

[hobbes187]

You can also try canon 250D and 500D close up filters. These are dual element and I got good results from them. Cost ~$170 for a 58mm thread... For 52mm should be cheaper.

 

[sherchoo]

Using the aperture ring of course...

I tried stopping it down for some of the shots, but the lower amount of light getting thru limits my stopping down to about f8 or so... any smaller and I can't see what I'm focusing at already.... :bsmilie:

Is this aperture ring built into the lens or is it a ring that I need to acquire from the store. The built in latch that is used to open the aperture on the lens will springs back to close when released.

 

[zac08]

Is this aperture ring built into the lens or is it a ring that I need to acquire from the store. The built in latch that is used to open the aperture on the lens will springs back to close when released.

Built in... I posted the pic in the other thread.

 

[sherchoo]

Built in... I posted the pic in the other thread.

Replied to your post. I think I'll stop the discussion here to avoid double posting. Thanks Zac