Fisheye Lens Troubles...

[jake337]

You need to physically change the aperture on the lens. Turn the aperture ring.

 

[Stepherly]

That seemed to only make the pictured worse...

 

[jake337]

What number did you turn it too?

Turn it to the smallest number.

 

[Stepherly]

I set the top number to 5/1.5 and the bottom to 3.5... its pointed at a very bright light...

 

[Overread14 2]

Aperture -
Bigger the f number the Smaller the aperture thus the less light that goes through the lens, but the greater the depth of field

Smaller the f number the Bigger the aperture thus the more light that goes through the lens, but the less the depth of field

Understanding Exposure by Bryan Peterson - a good introductory book to exposure that will help you a lot.



Edit:
The Aperture Ring is the lower of the two rings (the one closest to the lens mount/camera body). The more forward ring is the Focusing ring and the numbers marked on it are the focus distances (in meters and feet with the sideways 8 being infinity focus).

 

[jake337]

Try stepping outside. Is it daytime where you are?

 

[Stepherly]

Ill definitely check into that book you recommended. Its 6:30 pm so there's still some light out. Just for clarity, is the aperture ring above or below the part that says Fish-eye cs?

 

[jake337]

I think you need to get the basics of exposure to use an ALL manual lens.

 

[jake337]

Ill definitely check into that book you recommended. Its 6:30 pm so there's still some light out. Just for clarity, is the aperture ring above or below the part that says Fish-eye cs?

It's below. That 1.5 is your focus distance. The top ring is your focus and the bottom is your aperture.

 

[jake337]

 

[Stepherly]

I gotta say, you are my favorite person right now! The subject in the photo wasn't very cooperative, but I can actually see it! Thank you sooo much!

 

[jake337]

 

[Stepherly]

Oh that's really helpful! Thanks again!

 

[wfooshee3 2]

Also, your listing of data (again, this was EXIF data and not camera settings....) shows "Max sensitivity 6400" which implies to me that ISO is still Auto. The metering system set it to 100 because of the brightness of the subject. Allowing the camera to set ISO WILL take some exposure control away from you.

Also, this may be a difference between the chipped version and the un-chipped version, or a difference between your D3200 and my D7000, but I have to set aperture on the camera, not the lens. I'm pretty sure that's because my Rokinon is chipped, though. I have some older non-electronic lenses that do require the aperture to be set using the lens's ring, which seems to be how you have to use yours. But yeah, the default f:22 is awfully dim for most work!

You're probably also finding that focusing isn't exactly child's play with manual-focus lenses. Modern AF dSLRs don't have tyhe viewfinder aids for manual focusing that older cameras had, like the split-image or micro-prism ring in the center.

Does sound like the shutter is closed all the way. Try taking the lens off and look through the back while you move the shutter lever. The shutter opens for the viewfinder but when you fire the camera releases the shutter and it goes to whatever is set on the lens.

I marked your post "Disagree" because the shutter is not set on the lens, then I realized that you may be speaking of aperture iris and not the shutter. Just explaining the clicking I did....

 

[jake337]

Also, your listing of data (again, this was EXIF data and not camera settings....) shows "Max sensitivity 6400" which implies to me that ISO is still Auto. The metering system set it to 100 because of the brightness of the subject. Allowing the camera to set ISO WILL take some exposure control away from you.

Also, this may be a difference between the chipped version and the un-chipped version, or a difference between your D3200 and my D7000, but I have to set aperture on the camera, not the lens. I'm pretty sure that's because my Rokinon is chipped, though. I have some older non-electronic lenses that do require the aperture to be set using the lens's ring, which seems to be how you have to use yours. But yeah, the default f:22 is awfully dim for most work!

You're probably also finding that focusing isn't exactly child's play with manual-focus lenses. Modern AF dSLRs don't have tyhe viewfinder aids for manual focusing that older cameras had, like the split-image or micro-prism ring in the center.

Does sound like the shutter is closed all the way. Try taking the lens off and look through the back while you move the shutter lever. The shutter opens for the viewfinder but when you fire the camera releases the shutter and it goes to whatever is set on the lens.

I marked your post "Disagree" because the shutter is not set on the lens, then I realized that you may be speaking of aperture iris and not the shutter. Just explaining the clicking I did....

Just a question as I've never used auto ISO with a non-PCU lens. How would the camera know which iso to use of there is no metering going on?