lens hood indoors?

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I've only just started using a lens hood and read that they're good indoors as well as out. I used one indoors for a portrait shoot and I got a much higher ISO than normal (set to auto ISO). The light was down a little but that wouldn't I think account for that much of a ISO jump.

Would you use one indoors and would you expect the ISO to ramp up because of the hood?

Thank you everyone
 
I wouldnt expect that a hood would have too much of a detrimental effect to be honest. This may sound like a silly question, but are you using the correct hood for the lens?

Also, what lens?
 
The point of the hood is to reduce light hitting the lens from the wrong angles, which is a risk regardless of whether you're indoors or out. Without the hood, it makes sense that there's more light hitting the lens and the camera under auto mode will adjust accordingly.

How much of a difference in the ISO, and did any of the other settings/position change between the shots?
 
Good question! I think so. I'm using Canon 50mm 1.4 on a 6D. The hood is ES-71II.
 
em3 said:
I've only just started using a lens hood and read that they're good indoors as well as out. I used one indoors for a portrait shoot and I got a much higher ISO than normal (set to auto ISO). The light was down a little but that wouldn't I think account for that much of a ISO jump.

Would you use one indoors and would you expect the ISO to ramp up because of the hood?

Thank you everyone
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If it's of any use to you, I always use a lens hood where possible, indoors/outdoors, studio or location.

Sometimes with my Macro work it's just not possible as it can get in the way when working really close and can also block some of the lighting I'm using.

I must admit I've never heard of needing to up the ISO when using one (if it's the correct hood for the lens of coarse).

George.
 
Sounds like the correct one...

Well then, to quote Steve from above
Number45 said:
How much of a difference in the ISO, and did any of the other settings/position change between the shots?
Click to expand...
 
Number45 said:
The point of the hood is to reduce light hitting the lens from the wrong angles, which is a risk regardless of whether you're indoors or out. Without the hood, it makes sense that there's more light hitting the lens and the camera under auto mode will adjust accordingly.

How much of a difference in the ISO, and did any of the other settings/position change between the shots?
Click to expand...

I had the shutter speed set to 1/250 minimum (it was a baby shoot involving a rocking chair at times) and ranged from 1.4 to 4.5 taken in pretty much the same place with the same light. I've got some F2.2 shots at 1000 and lots around 640. Some F2.8 went up to 1250 and a few shots jumped all the way to 3200. I might be able to rescue some with noise reduction but I'm hesitant to include any over 640 as I give digital (jpg obviously) as well as print. The outside photos look great thankfully so if it's not the hood then it just must have been much darker than I thought.

As may be obvious, I'm a relatively newbie at pro photography so want to avoid making rookie mistakes so really appreciate everyone's help, thank you!
 
That seems a pretty significant jump there, I wouldn't have thought more than a fraction of a stop - certainly not several stops of difference.

What mode are you shooting in? It sounds like you might be in full auto (which is fine), but if you want to get to the bottom of the difference it probably makes sense to try a couple of test shots with/without the hood where you can 100% control all of the variables. So set the camera in manual with the same aperture, ISO and shutter speed and do it conditions where the light can't change - see what the camera meters under each test scenario.
 
Number45 said:
That seems a pretty significant jump there, I wouldn't have thought more than a fraction of a stop - certainly not several stops of difference.

What mode are you shooting in? It sounds like you might be in full auto (which is fine), but if you want to get to the bottom of the difference it probably makes sense to try a couple of test shots with/without the hood where you can 100% control all of the variables. So set the camera in manual with the same aperture, ISO and shutter speed and do it conditions where the light can't change - see what the camera meters under each test scenario.
Click to expand...

Shooting in AV. The 3200 ones were F3.8 I think. Yes, I think some test shooting is in order, thank you. I did a quick test to check the lens wasn't getting in shot but didn't think to check anything else.
 
I think you need to take control of the exposure manually and see what is going on. The only way I can see the hood having a significant effect on metering is if a hood that is too large is being used and blocking light to parts of the frame or if there is some sort of strange flare that is confusing the sensor into underexposing when the hood is off. I guess that is possible though I can't say I've ever noticed it.
 
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