MAKING A FOCUS ASSIST LED RING LIGHT FOR MANUAL MACRO LENS
When taking pictures using a macro lens, shallow depth of field usually mandates a rather small aperture to gain sharpness. With...
CHECKING MICROSCOPE OBJECTIVE CHROMATIC ABERRATION
What is chromatic aberration for an optical system? Well, according to Wiki, it is the failure of a lens to focus all colors to the same...
Using Raynox Close-Up Filter As Tube Lens
Overview Many people started out macro photography with close up filters, some are cheap one and some are not so cheap, such as Raynox...
Lock Your Mirror When Stacking
When it comes to focus stacking with high magnification objectives, everything that can reduce vibration counts. Among all the things,...
