need advice on polarizing filter and lens shade for hassleblad 80C

[tfalk]

hello everyone,

Here is what I am trying to do: I have a Hassleblad 500 CM and its orginal 80mm C lens. I need to add a polarizing filter to it, so i will get adapters that will allow me to fit my screw in filters onto the bayonet 50 mount. But, I also want to use a compendium or some kind of lens shade which is more than simply the metal ones, which I feel don't do anything to stop flare.
My questions are:

1) Once I adapt the filter to fit the bayonet of the 80 mm lens, can I get a screw in adapter that goes back to bayonet 50 on the other side to screw into the outer edge of the filter so it in turn fits a compendium and if so,

2)will I still be able to rotate the polarizer as needed?

Does this make any sense?

thanks.

 

[BrianShaw]

I don't use a Hassy compendium but the regular Hassy lens shades. The regular hoods attach to the outer bayonet on my CF lenses. Assume that is same on C lenses, and assume that is how the compendium works. If you are talking about another filter/hood system then I don't know. A filter with (for example) bay60-67 fits on the inner bayonets and can be used with the hassy hood. For a polarizer you'd have to reach your skinny fingers inside the hood to turn it, but I can't see why it wouldn't work. But when changing filters... I just take the hood off and put it back on before shooting.

What hood system are you talking about? What size filters are you adapting? These are important things to reveal for anyone to really address your question in anything but a generic manner.

 

[John Koehrer]

Adding two stepping rings "May" cause vignetting.
Think in terms of one of the square filter systems & you'll be OK. Rotating the polarizer with the hood in place could be awkward but Cokin made a holder that put the filter outside the hood so it can be done.

With the blather in my answer, I was never a fan of Cokin optical quality. Some of their product you could see ripples or defects in the plastic surface.

 

[benjiboy]

I believe you don't need a lens hood with a polarizing filter, it also become almost impossible to turn and get polarity and could cause vignetting.

 

[tfalk]

polarizer and compendium question

Presently I am using a Lindahl compendium shade, but I would consider getting a Hassleblad one if it helped the situation. I also have a B+W 77 mm polarizer that I was hoping to use just to save money, but the more I think of it, I may need to buy a polarizer to fit the 80mm lens. It would be smaller and therefore easier to deal with any shade system I decide on.
Another idea I have is to simply make a hood out of a short box that attaches to a flat piece of wood or metal like an arm that would be attached to the bottom of the camera. This arm would hold the box hood in place and be completely independent of the lens, therefore I could adjust the polarizer as I need to.

 

[tfalk]

Thats interesting that you feel I wouldn't need a lens hood when using a polarizer. It's something to definitely look into and test out. I am so used to having to control flare from the Hassleblad that its hard to imagine not it being an issue, but I welcome your suggestion for sure!

 

[benjiboy]

Thats interesting that you feel I wouldn't need a lens hood when using a polarizer. It's something to definitely look into and test out. I am so used to having to control flare from the Hassleblad that its hard to imagine not it being an issue, but I welcome your suggestion for sure!

The polarizer will control any flare when set at the correct polarity.

 

[RalphLambrecht]

Adding two stepping rings "May" cause vignetting.
Think in terms of one of the square filter systems & you'll be OK. Rotating the polarizer with the hood in place could be awkward but Cokin made a holder that put the filter outside the hood so it can be done.

With the blather in my answer, I was never a fan of Cokin optical quality. Some of their product you could see ripples or defects in the plastic surface.

+1 on Cokin

 

[RalphLambrecht]

Thats interesting that you feel I wouldn't need a lens hood when using a polarizer. It's something to definitely look into and test out. I am so used to having to control flare from the Hassleblad that its hard to imagine not it being an issue, but I welcome your suggestion for sure!

I bit the bullet and bought the Very expensive Hasselblsd polarizer for my CF lenses and have never seen any flare issues when using the plastic lens hoods; not even on the 50mm.