Go Back   Steve's Digicams Forums > Digicam Help > General Discussion

Reply
 
Thread Tools Search this Thread
Old May 14, 2006, 1:08 PM   #1
Senior Member
 
kung-fu-alien's Avatar
 
Join Date: Feb 2005
Posts: 176
Default

I am in a dilema.

My dilema is, should I buy a 2x teleconverter and fit it to my bell and howel 70-210 lens or just buy a 300mm lens?

Will the teleconverter effect the images I take, will that look un-natural?

I honestly don't know, this is my first digital SLR, and photography is new to me.

Your advice please.
kung-fu-alien is offline   Reply With Quote
Sponsored Links
Old May 14, 2006, 1:31 PM   #2
VP
Senior Member
 
VP's Avatar
 
Join Date: Mar 2005
Posts: 1,786
Default

If you want sharpest, go with the prime (my opinion). My recent experience with 2X TCisn't satisfactory to me for clarity. On really close shots it does fairly decent but I take very few shots that are at arms length.

I think others here that have tried them will probably have similiar comment.
VP is offline   Reply With Quote
Old May 14, 2006, 1:42 PM   #3
Senior Member
 
kung-fu-alien's Avatar
 
Join Date: Feb 2005
Posts: 176
Default

Being skint at the moment, I can only afford a SIGMA ZOOM APO 75-300mm 1:4 - 5.6, its going for £50 on eBay, and looks in immaculate condition.

Would you recommend this type of budget lens, or am I better off holding out and saving for a Nikon or Tamron for my D50.

I essentially want to take pictures of the moon, if my maths are correct a 300mm lens should be 9 X magnification, which I feel is adaqate for me at the moment.

Someone told me that the D50 has 1.5 time magnification anyway, so in theory a 300mm lens should become 450mm, but I am not quite sure if this if fact or not?

I don't want the facility to see inside craters, I just want to get a decent shot of a full moon.

Plusbeing realistic, it will be years before I can afford a new 500mmlens.

If you, or anyone else can offer my any advice on this, please feel free.



kung-fu-alien is offline   Reply With Quote
Old May 14, 2006, 3:01 PM   #4
VP
Senior Member
 
VP's Avatar
 
Join Date: Mar 2005
Posts: 1,786
Default

In that case (for moon shots).....if you had the lens and a 2X TC and ona tight equipmentbudget, you could probably come away with decent enough clarity.

Of course if you wantSOME crater detail, those would be better taken at less than full moon.

I have some experience with tight budget for hobby:-) I would say however that with photography equipment if you don't buy quality you will buy it again.....depending on how particular you are of course. I would love to have a Canon 600mm prime but I can't justify that for a hobby.
VP is offline   Reply With Quote
Old May 14, 2006, 6:50 PM   #5
Senior Member
 
Join Date: Dec 2002
Posts: 5,803
Default

The problem isn't as much the quality of the shot sharp-ness wise.

The problem is that you'll loose 2 stops of light. So if you're 200mm lens was f4 (which it probably isn't) then you'd be shooting at f8 with the 2xTC. That makes a 1/500th of a second shot into a 1/125th. That can be the difference between getting a "keeper" and deleting the image.

Eric
eric s is offline   Reply With Quote
Old May 14, 2006, 7:31 PM   #6
VP
Senior Member
 
VP's Avatar
 
Join Date: Mar 2005
Posts: 1,786
Default

Eric.....in my case I have a 2X TC on a Sigma 70-200F2.8 EX.All of mineusing it have been in good light.Not that my abilities are the best, but I began to wonder and then read other comments and also a test using TC to reach 400mm and saw the results. Similiar to mine.

Of course the closer the birds are the better job it does.
VP is offline   Reply With Quote
Old May 14, 2006, 8:25 PM   #7
Senior Member
 
kung-fu-alien's Avatar
 
Join Date: Feb 2005
Posts: 176
Default

I am trying to get shots of the moon, so I am wondering if the lack of light would be such an issue?


kung-fu-alien is offline   Reply With Quote
Old May 14, 2006, 8:49 PM   #8
VP
Senior Member
 
VP's Avatar
 
Join Date: Mar 2005
Posts: 1,786
Default

You should have no problem with that setup and using a tripod. Experiment with shutter speed,f.stop and ISO settings. The D50 is certaintly capable. I have taken some pretty decent moon shots with FZ20 with IS at ISO 100, f5.6, and 1/160. That is also using a 1.54x TC giving mea little better than 600mm equivalent. You should be able to use higher ISO. Others use different settings and get decent results.

I have not taken any moon shots with my Canon 30D but settings would be different.
VP is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 1:27 PM.