How do you feel about macro extension tubes? - FMVperformance.com : The site for all your Ford Mazda and Volvo needs
 
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post #1 of 7 (permalink) Old 03-09-2008, 11:39 PM Thread Starter
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How do you feel about macro extension tubes?

I would like to start taking some really close up macro pics, but I do not have the cash at the moment to shell out 900 for a decent macro lense so please do not give me that lecture. I am considering cheaping out and buying some extension tubes from ebay.. 20 bux or so wont break the bank so we will see.
I basically want to hear from the people that use these, are they worth it? Which ones should I get? Maybe post a pic that you have taken in macro and also a link to where you bought them from. I am shooting with a D40 with stock lense 18-55mm

Here is what I am looking at
This one is cool because it comes with a tripod. Kinda confuses me though because it doesnt have a tube, just a filter looking lense:
http://cgi.ebay.com/MACRO-Close-Up-L...QQcmdZViewItem

No tripod, just lense filter looking ones
http://cgi.ebay.com/Macro-Close-Up-L...QQcmdZViewItem


This one has the filter looking lenses and also an extension tube:
http://cgi.ebay.com/Extension-Tube-M...QQcmdZViewItem


too expensive:
http://cgi.ebay.com/5x-Macro-Extensi...QQcmdZViewItem




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post #2 of 7 (permalink) Old 03-10-2008, 09:37 AM
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Re: How do you feel about macro extension tubes?

Filters are corrections filters that work by reducing the focusing distance. In general avoid them as they reduce the image quality. My suggestion is find an inexpensive used manual focus wide angle lens on Ebay, like a 24 or 28mm lens. Get a lens reverser so you can mount the lens backward and you know have a macro lens. Of course aperature control is tricky as you have to manually stop down, but a 24mm lens reversed should give you better then 1:1.
-Matt
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post #3 of 7 (permalink) Old 03-10-2008, 03:33 PM Thread Starter
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Re: How do you feel about macro extension tubes?

hm... my list didnt update this post for some reason

I understand the whole quality loss in pictures when using filters or tubes, but for an amateur, would it be negligable?
I have never heard of reverse mounting a lense and all the 28mm lenses I found were still a bit pricey, interesting nonetheless. I will try to find some more info on reverse mounting I guess

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post #4 of 7 (permalink) Old 03-10-2008, 03:55 PM
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Re: How do you feel about macro extension tubes?

In terms of filters...if you aren't planning on doing a large blow up then go for it. If your goal is to use it as wall paper at some relatively small resolution (1024x768, 1280x1024) or a 4x6 print then a filter will work fine. It might even be acceptable as a 5x7, but with a larger print you are deffinitely going to notice a loss in quality.
-Matt
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post #5 of 7 (permalink) Old 03-10-2008, 04:15 PM Thread Starter
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Re: How do you feel about macro extension tubes?

no, it definitely wont be published, mostly for personal use and maybe posting on forum boards etc.
What is the difference b/t the filter and the extension tube/filter? I think thats whats confusing me

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post #6 of 7 (permalink) Old 03-11-2008, 08:48 AM
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Re: How do you feel about macro extension tubes?

The filters close correct things optically where as an extension tube actually puts the lens further away, which allows closer focusing (though you lose infinity focusing with an extension tube on). The one link you posted is for generic extension tubes an an adaptor to make them work with the Nikon camera and lenses.

As for a real macro lens as mentioned in the other threads...dunno. I'd like to get a vivitar series 1 90mm f/2.5 macro lens some day, because it could be useful to have something that focuses down to 1:1...though I doubt I would ever focus that close. There are a couple of 50mm macro lenses out there that I am interested in, even though they only focus to 1:2 and aren't "true" macro lenses.

For me I like doing close up portraits, and sometimes to get small details, like just a person's eye and the area immediately sorrounding it you need something like 1:2...and with a 50mm lens I would have the camera pratically in their face, which is akward, so a 90mm macro would give a much better working distance.
-Matt
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post #7 of 7 (permalink) Old 03-11-2008, 08:48 AM
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Re: How do you feel about macro extension tubes?

A long the lines of a macro lens, if you aren't planning to do huge mags you could consider a manual focus macro lens. Some of them aren't that pricey. The vivitar I as an example can generally be had for $60-80.
-Matt
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