Lens Hoods
What are they for, and when should you use them?..

Comments (9)

Hi kuri.

They should be used all the time. The main purpose is to keep out any stray light coming in from the side that may cause some lens flare like when shooting toward the direction of the sun or other light source. Each one is made to extend out at the same angle of view as the lens it's made for. if you had on one that was not for that lens for example one for a 100mm lens but had it on a 35mm lens,then the lens may see the hood in the shot..

They also protect the front element from hitting things somewhat.'The moment you think you're great is the moment you quit learning.'

Comment #1

Kiri wrote:.

What are they for, and when should you use them?.

To stop the sun hitting the front element of the lens and affecting photo quality, they arent quite as essential as they used to be given modern miulticoatings. If caught without one you can always impovise, using your hand to shade the lens etc.Shay son of Che..

Comment #2

Depending on the lens, using the built-in flash may result in the hood leaving a shadow in your picture. This would be the only situation I know of for removing the hood..

FINE PRINT: I reserve the right to be wrong. Should you prove me wrong, I reserve the right to change my mind...

Comment #3

Without hood.h.

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window.

With hood..

Image control:Zoom outZoom 100%Zoom inExpand AllOpen in new window.


Comment #4

Excellent example..

To those who haven't got a lens hood, try holding your hand or hat out to shade the front of the lens, and you'll see what a lens hood is supposed to do...

Comment #5

Thanks for the replies, and the sample images..

Since I didn't know the point of them, and they add quite a bit of length to the front of the lens, I was just going to leave them off... But now I know better and will be using them Thanks..

Comment #6

Can I use a lens hood + a circular polarizer together at the same time? If so, would that combo affect the exposure/pic quality?..

Comment #7

Some lens hoods mount to the outside of the lens in a bayonet fashion. Other hoods attach by means of the threads on the front of the lens, the same ones filters attach to..

If you have a bayonet hood some have a slot cut in them so you can rotate the polarizer without removing the hood. The hood is slightly less effective but the usability is better. Otherwise you probably have to adjust the polarizer then attach the hood and take the shot..

Regarding thread attached polarizers and hoods, sometimes they combination of the filter thickness with the lens hood will be enough to cause vignetting. This is most likely at wide angles..

On the other hand very wide angle lenses (think 90 degree angle of view) used with a polarizer will probably not produce the effect you wish. Polarizers affect different areas of the sky (or other elements in the photo) to different degrees depending on their angle with respect to the sun. On a very wide angle lens this can mean that the polarizer affects some area of the sky to large degree and and other areas to little or no degree. The result is an unnatural looking sky..

A) match the lens hood dimensions to your lensb) beware of stacking filters and thread mount hoods on wide angle lenses..

Comment #8

Usually the combination is fine (even preferred). As long as the hood is not screwed into the lens in the same way as the filters are, the combo won't vignette any more than either put on separately..

I think the combo is better, because with a CP you have two more glass surfaces to pick up even more flare..

Some lens hoods are quite deep, and you have to be careful reaching your finger in there to turn the CP, so as not to fingerprint the lens...

Comment #9

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This question was taken from a support group/message board and re-posted here so others can learn from it.


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