![]() |
|
|
#1 |
|
Member
Join Date: Sep 2006
Posts: 1,660
|
hey guys, i've just gotten a Hoya closeup +4, wanted to use it together with my sigma70-300 with macro, but cant seem to focus at 200mm..
only managed to find the focu length at 70mm.. anyone can help? |
|
|
|
|
#2 |
|
Member
Join Date: Jun 2006
Location: Singapore
Posts: 245
|
Hi Bro,
Irregardless of what focal length you are using, check your focusing distance with respect to your subject. Cheers! |
|
|
|
|
#3 |
|
Member
Join Date: Sep 2006
Posts: 1,660
|
hmm. how much distance does the +4 affect?
|
|
|
| Sponsored Link |
|
|
#4 |
|
Member
Join Date: Jun 2006
Location: Singapore
Posts: 245
|
errr, Im not an expert Bro. I guess trial and error on that distance. Perhaps same theory when you are using a magnifying glass. My cents of opinion.
|
|
|
|
|
#5 |
|
Member
Join Date: Mar 2007
Posts: 1,090
|
have you tried moving closer to the subject?
|
|
|
|
|
#6 |
|
Member
Join Date: Nov 2004
Location: Singapore
Posts: 1,139
|
Hi, I also try using a closeup +4 on my canon 75-300mm lens. You can try to get closer to your subject. But it is super hard to get in focus from any thing more than 100mm even you use manual. So use it at the 70mm end. Or you can try the closeup +4 on a 50mm lens. It give good result. Hope this help...
![]() |
|
|
|
|
#7 |
|
Member
Join Date: Sep 2006
Posts: 1,660
|
hmm i'm using it on the zoom end cause my macro only available from 200mm to 300mm..
hmm think i shall use it on my kit lens 18-55, or a tamron 17-50 that i'm purchasing soon.. btw if i were to use on 200-300, which should i get? +1 +2 or +3 ?? Thanks |
|
|
|
|
#8 |
|
Member
Join Date: Feb 2007
Location: Woodlands
Posts: 767
|
I find that the 70-300mm tend to hunt under low light conditions. In any case, did you toggle the macro switch? Did you make sure that the distance between the lens and the subject is 1m? The minimum focusing distance must be obeyed too.
|
|
|
|
|
#9 |
|
Senior Member
Join Date: Aug 2005
Location: Tanjong Katong
Posts: 3,726
|
When you use closeup +4, your object to the lens should be less than 25cm when lens distance at infinity, regardless lens' focal length.
Closeup +4 = focal length = 1 / +4 (in meter) = 25cm. Regards, Arto. |
|
|
|
|
#10 | |
|
Member
Join Date: Sep 2006
Location: Bt. Merah
Posts: 160
|
![]() |
|
|
|
|
|
#11 |
|
Member
Join Date: Feb 2007
Location: Woodlands
Posts: 767
|
|
|
|
|
|
#12 |
|
Member
Join Date: May 2007
Posts: 294
|
|
|
|
|
|
#13 |
|
Member
Join Date: Sep 2006
Location: Bt. Merah
Posts: 160
|
|
|
|
![]() |
| Bookmarks |
| Thread Tools | |
|