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cheap telephoto lens
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Jan 12, 2019 00:55:21   #
whlsdn Loc: Colorado
 
chikid68 wrote:
The cheap Opteka lens generally has a fixed aperture of 8.0 but also is not coated so while the aperture is smaller than the 75-300 the coating on the 75-300 reduces the light to a degree.
Also the Opteka being fully a manual lens will not provide any information to the camera which causes the camera to read it as f0. 0 and provides the light amount for such an open aperture which will overexpose the image.
That lens will only work properly in full manual mode.


Now THERE is a useful answer. Thoughtfully delivered. Nice!

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Jan 12, 2019 00:56:43   #
whlsdn Loc: Colorado
 
imagemeister wrote:
- and by someone who knows how to use the manual mode


And there is an example of a needless, but accurate answer extension.

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Jan 12, 2019 01:10:34   #
whlsdn Loc: Colorado
 
amfoto1 wrote:
Not true. Yes, you CAN set the exposure fully manually... However there are also limited auto exposure modes that can be used. It's possible to use Aperture Priority (Av) and - probably - Manual (M) with Auto ISO (if your camera has this mode... most newer ones do, but I'm not sure about the Rebel T5).

Other auto exposure modes WILL NOT work with a manual aperture lens. It IS NOT possible to use full "Auto", or ny of the "scene" modes ("sports", "landscape", "portrait", etc.) or to use Program (P) or Shutter Priority (Tv) with manual aperture lenses. Any mode where the camera needs to control the aperture is unusable.

But you still have at least one AE mode that can be used: Av or Aperture Priority.

Another possibility is....

If you post the image here, we might be able to suggest more or even give some guidance recovering it, if that's possible. Just make sure the image EXIF is left intact and be sure to use "store original" when you do the upload.

EDIT: I just did a search for "Opteka 500mm" and see two currently being offered. One is a manual focus, manual aperture 500mm f/8 (under $100) and the other is a more compact 500mm f/6.3 "mirror" lens (under $150). Most mirror lenses ....
Not true. Yes, you CAN set the exposure fully manu... (show quote)


There are SO many positive, helpful responses to questions on this board that the few sassy replies fail to dull my joy at finding this board. Responses such as amfoto1's (which I shortened into senselessness) show not just the value of experience and knowledge available here, but even a willingness to do research to provide more detail. Nice! Every thread is a learning experience for me.

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Jan 12, 2019 09:39:16   #
frankraney Loc: Clovis, Ca.
 
CHG_CANON wrote:
People who have the skills and a willingness to provide actionable tips in response to a request for help, they need an actual image as the basis for the discussion and analysis. People who don't have those skills nor a desire to be helpful, they should probably just keep to the many other active posts where that type of input is more appreciated ....



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Jan 12, 2019 10:00:35   #
frankraney Loc: Clovis, Ca.
 
Several smart ass answers. The OP is a beginner. Smart ass answers do not help a beginner... Or will only chase them away.

Several GOOD answers too....

As thumper says...... If you can't say anything nice, don't say anything at all..

To the OP..... If your still here, post the good pic and the overexposed one, and click the store image box. There are several people here that with the info available in the image info (exif) and seeing the images can tell you exactly what the problem is.....

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Jan 12, 2019 11:33:44   #
Leitz Loc: Solms
 
frankraney wrote:
Several smart ass answers. The OP is a beginner. Smart ass answers do not help a beginner... Or will only chase them away.

Several GOOD answers too....

As thumper says...... If you can't say anything nice, don't say anything at all..

To the OP..... If your still here, post the good pic and the overexposed one, and click the store image box. There are several people here that with the info available in the image info (exif) and seeing the images can tell you exactly what the problem is.....
Several smart ass answers. The OP is a beginner. S... (show quote)

I too would like to see a picture. (Need a good laugh) The OP has described the problem, and the solution was given early on.

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Jan 12, 2019 12:11:05   #
GoofyNewfie Loc: Kansas City
 
Vic Nunno wrote:
You're welcome.


Welcome to the 'hog, Vic!
One important thing to learn is to use the "Quote Reply" option as I have done here.
That way everyone knows which post you are addressing.

If you're not answering a specific post, just use the "Reply"

Cheers!

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Jan 12, 2019 13:04:26   #
PHRubin Loc: Nashville TN USA
 
scooter1 wrote:
Someone noted that it is a manual lense so I will try that. I haven't got a light meter so that should be the next buy. Thank you Carl. I'll have to figure out if the aperature is closing.


You shouldn't need a light meter to see how to set exposure as there usually is an indicator in the camera.

To check if the lens "closes down" simply depress the "Depth of Field Preview" button on the camera.

There is a good chance that lens doesn’t close down for anything and you have to accept whatever f/stop it is. If so, you can only adjust exposure with ISO and shutter speed.

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Jan 12, 2019 13:08:05   #
PHRubin Loc: Nashville TN USA
 
scooter1 wrote:
I definately need to learn my camera functions and controls. It's all digital on the screen. Not sure what the WB is but I'm learning. Thanks to all of you here on this site. It can be a bit daunting. Thanks Vic for the pointers. They are much appreciated.

WB is white balance. White looks different under different lighting. Incandescent lighting has a yellow tint, fluorescent blue, etc. The camera tries to balance tint when in "AWB" (auto white balance), or you can set it for the current conditions.

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Jan 12, 2019 13:13:56   #
PHRubin Loc: Nashville TN USA
 
graybeard wrote:
Thanks, Mr. Cheap Shot Artist, my technique is fine. I have subsequently bought Canon and Tamron telephotos and they work just fine, including focus. There is such a thing as crappy equipment, and those bundle throw ins are a good example. Nevertheless, I always appreciate a good insult. I do think tho that your attempt fell short, try to improve your technique and better luck in the future.


That wasn't an attempt at a cheap shot. I have decades of experience but needed to practice to get good photos when I first got my Tamron 150-600mm G2 lens. My technique wasn't good enough to work at 600mm until I practiced. I suspect that a newbie will have similar results.

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Jan 12, 2019 16:34:31   #
scooter1 Loc: Yacolt, Wa.
 
ballsafire wrote:
I really don't think you need a light meter--your camera has one in it already!! And you should move to an advanced shooting mode such as Av (aperture mode)--where the camera does a lot of work for you.


Thank you ballsafire. I really do need to know my camera better and how to use all of the settings. By the way a little dab of bag balm might cool down the balls a little

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Jan 12, 2019 16:37:08   #
scooter1 Loc: Yacolt, Wa.
 
whlsdn wrote:
Now THERE is a useful answer. Thoughtfully delivered. Nice!

Yes it was a useful answer.

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Jan 12, 2019 16:43:37   #
scooter1 Loc: Yacolt, Wa.
 
frankraney wrote:
Several smart ass answers. The OP is a beginner. Smart ass answers do not help a beginner... Or will only chase them away.

Several GOOD answers too....

As thumper says...... If you can't say anything nice, don't say anything at all..

To the OP..... If your still here, post the good pic and the overexposed one, and click the store image box. There are several people here that with the info available in the image info (exif) and seeing the images can tell you exactly what the problem is.....
Several smart ass answers. The OP is a beginner. S... (show quote)


Thank you frankraney. I will do that in the future but I erased all of the bad ones. There are enough of you good helpful people here I have no intention of leaving. I'm learning the website as well as the camera. Great bunch of people here. Thanks to all of you.

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Jan 12, 2019 16:45:43   #
scooter1 Loc: Yacolt, Wa.
 
PHRubin wrote:
You shouldn't need a light meter to see how to set exposure as there usually is an indicator in the camera.

To check if the lens "closes down" simply depress the "Depth of Field Preview" button on the camera.

There is a good chance that lens doesn’t close down for anything and you have to accept whatever f/stop it is. If so, you can only adjust exposure with ISO and shutter speed.


Thank you PHRubin. All of your comments are helping me to understand and Your pointers are very helpful.

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Jan 12, 2019 16:46:39   #
scooter1 Loc: Yacolt, Wa.
 
PHRubin wrote:
WB is white balance. White looks different under different lighting. Incandescent lighting has a yellow tint, fluorescent blue, etc. The camera tries to balance tint when in "AWB" (auto white balance), or you can set it for the current conditions.



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