Lens hood for Zenitar

[k_s_rajeev]

Does not one know any lens hood for Zenitor 16 mm fisheye.

Thank you.

[rdenney]

k_s_rajeev wrote:

Does not one know any lens hood for Zenitor 16 mm fisheye.

Thank you.



The Zenitar lens has an integral hood, but it is designed for full-frame use. On the full frame, the lens has a 180-degree diagonal field of view, and any hood at all would cause vignetting. The integral hood shades the top and bottom only.

For the reduced sensor, a petal hood might be useful, but you'll have to make it yourself.

Rick "who uses a free hand to keep the sun off the lens" Denney

[k_s_rajeev]

Thank you.

I had lot of exposure when I tried last time, Is it somethign I am doing wrong or What?

http://community.webshots.com/album/98065116DAWkJa

Thes shots were taken with EOS -10d and Zenitor Fisheye.

Some one helpe me.

Thank you.

[PrimoFelis]

I can't help you with your question, but I kind of like the photo on the right. It has a painting-like feel to it. Is this a result of a post processing, or just an overexposure?

Maybe if you give us a little more information as to how you took these photos (camera mode, aperture and shutter speed, etc.), maybe someone could help you with your question.

Was the camera (lens) in the sun (i.e., in a sunny spot) when you snapped these pictures?

Best regards,

[k_s_rajeev]

I took this shoot in a 10-d putting it in the automatic mode for the scenary and I used the zaenitor and i have not done any post processing, it is directly from the camera.

I took it around 8.30 in the moring and I am in the sunlight when i took this shoot, even though the lens for not directly exposed to the sun. The sun was on the right side to me.

Thank you.

[PrimoFelis]

The Zenitar lens is probably not meter-coupled, so when you use this lens with 10D, you are using the lens in what is called "stop-down metering mode."

You can confirm this by looking at the camera's displays. You will see "00" where you would normally see an aperture value.

So, with this lens, you would want to take pictures in either "Av" or "M" (manual) mode. None of the automatic "Basic modes" will work correctly with this lens, because the camera is unable to set the aperture on the lens. (You have to manually select an aperture value on the lens itself, not on the camera.)

If you use "Av" mode, the camera will automatically select a proper shutter speed for the light available and the aperture you selected on the lens.

If you use "M" mode, you will also need to manually select a proper shutter speed by looking at the exposure scale on the camera.

I would try again using the Av mode. You should see an improvement. Hope this helps.

PS. Let me know if this doesn't make sense. I can send you a link to a website that explains this -- I can't find it just now.

PPS. Found it. Here it is:
http://photonotes.org/articles/eos-manual-lenses/

[k_s_rajeev]

This is pretty cool.

Thanks lot Primo.

Any new information is always helpful.

Thank you.

[rdenney]

k_s_rajeev wrote:
This is pretty cool.

Thanks lot Primo.

Any new information is always helpful.

Thank you.


Your question was answered while I was traveling, but I'd add that I usually adjust my camera to underexpose by a stop routinely, and by an extra half stop with this lens. After composing and focusing, stop it down manually to the aperture you want, and it will set the shutter speed in Av mode. Any of the metering modes will work.

Rick "who has used the Zenitar quite a lot" Denney

[k_s_rajeev]

k_s_rajeev wrote:

Your question was answered while I was traveling, but I'd add that I usually adjust my camera to underexpose by a stop routinely, and by an extra half stop with this lens. After composing and focusing, stop it down manually to the aperture you want, and it will set the shutter speed in Av mode. Any of the metering modes will work.

Rick "who has used the Zenitar quite a lot" Denney

Rick,

Thank you.

This is going little above my head.

If you could let me know how I practically do it it will be great. I am just in the procees of learing. Just little more expliantion will help me to get the things right.

Thank you.

[rdenney]

k_s_rajeev wrote:


This is going little above my head.

If you could let me know how I practically do it it will be great. I am just in the procees of learing. Just little more expliantion will help me to get the things right.




Sorry, I didn't mean to talk so fast.

On most Canon lenses, the aperture in the lens is controlled electronically by controls on the camera. Thus, one selects f/5.6 or f/11 by adjusting controls on the camera (or by using P, Tv, or some other mode that automatically sets the aperture). With the Zenitar, there is no electronic control of the lens, so you have to set the aperture manually. When you do, however, the image gets darker, because of the smaller aperture. (Canon lenses don't stop down to the aperture setting until you take the picture so you can view the scene at the brightest maximum aperture.)

Thus, I focus the image and then move the aperture ring to the setting I want. This is usually f/8 or f/11, with these being the apertures that provide the best performance. Higher number=smaller hole=more depth of field=less light=longer shutter speed.

Set the camera on Av, and the exposure compensation (usually the thumbwheel on the 10D) so that the pointer in the viewfinder is at -1.5. You'll end up wanting to fiddle around with that value depending on the images you get. The camera will set the shutter speed automatically given the amount of light admitted by the stopped-down lens.

Here's an image I took recently at Mount St. Helens with the 10D and the Zenitar. There is Photoshop post-processing involved, but the information is all there.

http://www.rickdenney.com/scratch/st_helens_zenitar_johnston_ridge_extreme_lores.jpg

Can you see the barrel distortion in this image? Neither can I. It's there, but it's hidden by the composition.

Rick "who took a similar shot with a 30mm fisheye on medium format" Denney

[k_s_rajeev]

Rick,

That was really a good picture and I dream of taking such pictures.

I will try the suggestion by you next time and let you know how the thigns comes.

I guess I can learn a quite a bit from you, if you are willling to teach me and have time. I am planning to join the photography class in Jan ( no classes till then).

Thank you again for you help.