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jamesrbizzari

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When you look down the barrel of a lens hood, should you be able to see light where the hood attaches to the lens? I bought generic hoods for my Canon 18-55mm and 75-300mm and there's small gaps where they attach.
Thank you in advance.
 
Does it shade you lens? Do you still have glare of flare from side light? If no flare and it stays on you should be good to go.

I have lens hoods with notches in them for adjusting filters attached to the lens.

Mike
 
The idea is to concentrate the light, more light straight on and less light from the sides, and keeping sun flare out. The slight light leakage you describe is not really important.

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An excellent lens lasts a lifetime, an excellent DSLR, not so long.
 
rsn48 said:
The idea is to concentrate the light
Click to expand...
Only lenses concentrate light. Hoods are just shades, nothing more or less.

The idea is to block light from wider angles than the frame needs ( as far as practical ) because this light can "bounce" around inside the lens and glass and cause flares and reduced contrast. Like when you shade your eyes from the sun to see clearly.

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StephenG
 
Thank you everyone. I feel more confident now, as I just got them and haven't used them yet. I was worried that they'd need a precise fit. Great
 
jamesrbizzari said:
When you look down the barrel of a lens hood, should you be able to see light where the hood attaches to the lens? I bought generic hoods for my Canon 18-55mm and 75-300mm and there's small gaps where they attach.
Thank you in advance.
Click to expand...
That doesn't cause a problem because that's not where the light that bothers you comes from. Back in the days of rangefinder cameras, lens hoods sometimes had to have big slots so you could see through the finder:





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Leonard Migliore
 
Thanks Leonard. My younger friends were accessorising this bling on their digital cams and I was wondering why someone would design less structural strength to a simple hood and charge more and let rain for example come through. I have used range finder but not those types and now I understand what those slots are for.

:)
Leonard Migliore said:
That doesn't cause a problem because that's not where the light that bothers you comes from. Back in the days of rangefinder cameras, lens hoods sometimes had to have big slots so you could see through the finder:





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Leonard Migliore
Click to expand...
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Ananda
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Leonard Migliore said:
jamesrbizzari said:
When you look down the barrel of a lens hood, should you be able to see light where the hood attaches to the lens? I bought generic hoods for my Canon 18-55mm and 75-300mm and there's small gaps where they attach.
Thank you in advance.
Click to expand...
That doesn't cause a problem because that's not where the light that bothers you comes from. Back in the days of rangefinder cameras, lens hoods sometimes had to have big slots so you could see through the finder:
Click to expand...
Wow! That's the absolute ideal shot to make the point. Well done, you, Leonard!! :-)
Leonard Migliore said:


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Leonard Migliore
Click to expand...
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Regards,
Baz

"Ahh... But the thing is, they were not just ORDINARY time travellers!"
 
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