OEM Digital Camera Accessory Close-Up Filter Professional Optical Glass Lens Filter X-P24A4Y1001B
Close-up lens (sometimes referred to as close-up filter or a macro filter) is a simple secondary lens used to enable macro photography without requiring a specialised primary lens. They work like reading glasses, allowing a primary lens to focus more closely.Bringing the focus closer allows the photographer more possibilities. Close-up lenses are often specified by their optical power in diopters, the reciprocal of the focal length in meters. For a close-up lens, the diopter value is positive: the bigger the number, the greater the effective magnification. Higher quality achromatic lenses commonly lack a strength specification in diopters. It can be inferred as the reciprocal of the maximum specified working distance in meters (i.e., a lens with a maximum working distance of 25 cm has a strength of +4 diopters). Several close-up lenses may be used in combination; the optical power of the combination is the sum of the optical powers of the component lenses. For example, a set of lenses of +1, +2, and +4 diopters can be combined to provide a range from +1 to +7 in steps of 1. Are close-up filters any good? Macro Photography on a Budget: An introduction to Close-up … Using close-up filters is a great way to get started with macro-style photography, but they have some very important limitations that you need to be aware of to start. First of all, they only do one thing, which is shorten the minimum focusing distance of your lens.
Overview
Specifications
| Parameter | Value |
|---|---|
| Diameter | 58mm |
| Close-up | +4 |
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