Marumi Macro Achro 200 + 5 Filter DHG 72 mm

Marumi DHG Achromatic Macro 200 +5 Filter Features

The Marumi DHG Achromatic Macro 200 +5 Filter is comparable to a professional top filter at a fraction of the price. The DHG series filters feature a special coating to reduce unwanted reflections, a matte black metal rim, and black glass edges to minimize internal reflections.

Macro Photography Capabilities

This achromatic conversion lens is perfect for close-up photography. It shortens the focal length, allowing you to capture subjects closely while maintaining sharp focus. By using this close-up filter, you can photograph objects from a shorter distance than your lens typically allows.

Calculating Minimum Focal Distance

The minimum focal distance of the Marumi DHG Achromatic Macro 200 +5 filter varies based on the camera lens. The formula to determine this is:

X (D * X + 1)

Where X is the minimum focal point of your camera lens and D is the diopter (strength) of your close-up filter.

The diopter of the close-up filter is multiplied by the minimum focal point of your camera lens. One is added to this product, and the minimum focal point of your lens is divided by this final number. For example:

0.55 (5 * 0.55 + 1)
0.55 (2.75 + 1)
0.55 / 3.75 = 14.6cm

Thus, a lens with a minimum focal point of 55cm used with a +5 close-up filter would reduce the minimum focal point to 14.6cm.