what is the lens front cover for ? noob question !!

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moron

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I got the 18-200mm tamron lens for my 400D , the lens has a detachable plastic part at the end , what is it called and what are its uses.


Sigma-Tamron-Canon-Digital-Camera-Lenses-with-Hoods-Extended.jpg
 
Thats a lens hood, it helps cut down on glare on your photos by blocking the sunlight from directly hitting the lens and reflecting internally.
 
Do you mean the petal shaped thing on the top of the lenses in those pictures you've posted? If so it's called a 'hood' - they apparently help stop stray light from entering the lens and causing glare. I'm a noob too so no expert ;)

Posted at the same time as Mole2K and JumboBeef :lol:
 
They are also very usefull at protecting the lens against accidental knocks.
 
Its shaped like a petal to minimize the effect of vignetting in wide angle lenses, you will notice it will only fit in one position because the petals have to be in the same place every time you use it.
normal/telephoto lens hoods are just round, they dont vignette.

yeah...vignetting
 
yes joxby the hood petals fit in one way
surprisingly ive not seen many people use the hood while shooting outdoors ,
 
Always use the hood, unless you're doing very close work and it's casting a shadow on your subject. They cut down flare, protect the lens and even fit on backwards when not in use so they don't take up any bag space.
 
moron said:
yes joxby the hood petals fit in one way
surprisingly ive not seen many people use the hood while shooting outdoors ,
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Not really surprising: those are simply stupid people who don't know their camera, nor photographic principles. You will find there are a lot of ignorant people like that...

Never shoot without a hood!

Inside and outside!
 
W.Smith said:
Not really surprising: those are simply stupid people who don't know their camera, nor photographic principles. You will find there are a lot of ignorant people like that...

Never shoot without a hood!

Inside and outside!
Click to expand...

You know it's not what you say, but the way you say it! :suspect:

Not knowing what a lens hood is for or basic photographic principles doesn't make people stupid - it makes them uninformed. It is entirely possible to enlighten people without making them feel like pond life!

Do consider what you just typed before you hit the 'Submit' button.
 
CT said:
Not knowing what a lens hood is for or basic photographic principles doesn't make people stupid - it makes them uninformed. It is entirely possible to enlighten people without making them feel like pond life!
Click to expand...

:clap: :clap: :clap:
 
best to avoid using a hood if using the camera's built-in flash, a wide or long hood can create a big shadow
 
CT said:
You know it's not what you say, but the way you say it! :suspect:

Not knowing what a lens hood is for or basic photographic principles doesn't make people stupid - it makes them uninformed. It is entirely possible to enlighten people without making them feel like pond life!

Do consider what you just typed before you hit the 'Submit' button.
Click to expand...

Well put CT. :clap: This is a usually a friendly, informative forum, where people generally feel comfortable asking anything about photography. I have learnt so much from reading advice posted and responses like the one from W. Smith could put people off asking for advice. I am sure no offence was intended but a little more thought into the wording may have been more helpful. :)
 
Ooooh, oh my, I couldn't agree more with CT's comment. :thumbs:

With all due respect to W.Smith's comment, I'm sure no offence of any kind was intended, but there are ways of explaining things, without it being portrayed as "disparaging".

Even though I've been using a camera since I was 15 years old, which is 20+ years ago, it has only ever been a point and shoot. I only progressed to my Fuji s9500 18 months ago, and am still soooo very new to photography. I would hope that if I ever had a "Newbie" question to ask, that I would not be made to feel inferior, despite having taking basic photos since I was a teenager. We all need to learn, and just because we have a camera in our hand, with manual and other accessories, doesn't automatically determine that we know or must know all that's entailed with the hobby!

I did know what a lens hood was though, lol. ;)Though saying that, there is sooooo much I don't know, and would like to learn as much as possible, and I just feel that no member should feel inferior with any questions they may have, irrelevant of how obvious the answer may be. Happy posting peeps. :thumbs:
 
Wookie said:
best to avoid using a hood if using the camera's built-in flash, a wide or long hood can create a big shadow
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yes i just took a few shots indoors with flash of my brother and he was mighty upset with the shadow.
 
W.Smith said:
Never shoot without a hood!

Inside and outside!
Click to expand...

Or....Take hundreds of photos with your hoodless kit lens and never have any problems. Guess it just depends on how well you work your ignorance ;)
 
Hmm yes, harsh W.Smith :( Nicely said CT et al. It's sometimes hard for new people to come onto an established board and ask questions - for me anyway, you all seem to know so much and it wasn't until I actually started asking questions, did I find everyone to be thoroughly kind and freely giving of information! One of the nicest forums on tinternet this is :D

Raymond that is blimmin brilliant! It's great to see so many people with positive views on countryside sports like myself :thumbs:
 
The lens hood is used to help reduce flare when shooting towards a light source.
If the light source is behind you, you won't need to use the hood.

I tend to leave my hoods in the boxes the lens's came in,
then use something I find at the location to block any unwanted flare. ;)
 
Isn't being hoodless known as being Circumcised ???

I ALWAYS use my hoods, except when they aren't needed or get in the way!

Like all 'Rules' "Never shoot without a hood" is a generalisation and is merely a guideline, a good idea if you like
 
There's also the possibility of increased vignetting on fast lenses on full frame bodies. As Matt has said, it is frequently enough just to shade one side of the lens.

Have a read of this, it may enlighten some of the posters above....others may know better.

http://www.vanwalree.com/optics/lenshood.html

Bob
 
Wow...some harsh stuff said.My take on it, for those who give a damn......

Everybody has to start somewhere and nobody knows everything............:thumbs:
 
W.Smith said:
Not really surprising: those are simply stupid people who don't know their camera, nor photographic principles. You will find there are a lot of ignorant people like that...

Never shoot without a hood!

Inside and outside!
Click to expand...

as i havnt got lens hoods for all my lenses id better chuck them away then ,,either that or use my left hand when needed .. or stand in the shade ,,or dont point it straight into the sun ( not that it would make any difference even with a hood )
 
This proves that having a separate section for such posts is wrong, but i can understand how frustating it is when certain questions are asked .

Harsh stuff....lol .... I really dont think so
 
Even if you are using a hood it may not be the correct one. Lenses with hoods designed for full frame cameras i.e. 17-40 L on a cropped camera it will be providing ineffective shade.

And who said this was a simple subject! :D
 
^^Gord^^ said:
Even if you are using a hood it may not be the correct one. Lenses with hoods designed for full frame cameras i.e. 17-40 L on a cropped camera it will be providing ineffective shade.

And who said this was a simple subject! :D
Click to expand...

Been there, done that.....bought a different hood and then bought a full frame body :bonk:
 
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