User Manual
TIPS FOR USING THE VELLO EXTENSION TUBES PRECAUTIONS
• At extremely close distances, focus may be difcult to achieve, whether
using auto or manual focus. If this is the case, use a macro focusing rail
or set the lens manually to the desired focus point. Then, move the lens
forward or back to achieve the sharpest focus.
• When using extension tubes, an on-camera ash is not recommended
since it may result in unsightly shadows. For best results, use an
off-camera ash, dedicated macro light, or another light source.
Note: There is no electronic aperture control when the extension tubes are
used with Nikon AI lenses.
• Using an extension tube provides extremely close focus for your lens,
but you will not be able to focus to innity while the extension tube is
attached to your lens.
• The amount of transmitted light is reduced when using an extension
tube. The light is reduced more when multiple extension tubes are used
together. This reduction in transmitted light can affect the camera's
ability to auto focus. Manual focusing is recommended if the lens begins
to "hunt" for a focus point (when it’s not able to quickly lock onto the
subject).
• Images are for illustration purposes only.
• Please read this instruction manual before using the product.
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