Focusing your DSLR even while wearing glasses

According to the Vision Council of America, about 75% of US adults use some sort of vision correction. About 64% wear glasses, and about 11% wear contact lenses exclusively, or part time with glasses the remainder of the time.

It seems safe to assume that the same percentages apply to photographers in general, including travel photographers, and those on vacation.

Unfortunately, many photographers who wear glasses seem to have difficulty focusing their DSLRs and composing their images due to their inability to see the image fully in their camera's viewfinder, “edge to edge.”

Fortunately, for most photographers who wear glasses, there are both equipment solutions and techniques to help with focusing and image composition.

We need to start with the photographer's glasses. Prescription lens glasses are either single-focus or multiple-focus. Multiple-focus lenses can be bifocals, trifocals, and progressive lenses. Of these, the most difficult to use while photographing are trifocals and progressive lenses.

DSLR Purchasing: APS-C vs. Full Size Sensor?

DSLR's sensors are essentially digital “film.” The sensor is the camera's electronic device which captures images.

Sensors contain millions of “photosites,” essentially buckets which capture the light coming through the DSLR's lens. The light is converted to an electric signal which gets measured, optimized, and converted to a digital image by the DSLR's processor.

The size of the buckets (photosites) is important to the sensor's sensitivity and its ability to accurately gather light in a variety of lighting conditions. Bigger buckets are better than smaller ones, because more light can be stored in them, without getting over-filled. Bigger buckets have a lesser tendency to impart noise into the image.

Slowing down your camera's battery drain!

I don't know about your digital camera, but my Nikon D-200, a DSLR, seems to eats up its battery charge too quickly. That's one of the major reasons I have a vertical grip on my camera. The grip allows me to use two batteries at a time, doubling battery life.

Today's digital cameras, whether DSLR or Point and Shoot units depend upon batteries to power the camera and its variety of moving parts and electronic circuits; no battery charge, no photos.

You should be aware of what you can do to extend the life of your camera’s battery. I also recommend carrying a spare battery at all times when taking photographs.