Sponsor Message:
Aviation Photography Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Mirror Lens Or Convertor?  
User currently offlineWork4bmi From , joined Dec 1969, posts, RR:
Posted (11 years 5 months 4 weeks 1 day 9 hours ago) and read 2630 times:

Owning a Canon D30, the ability to add new lenses is always good. Im after some extra "telescopic" for some close up photos. Just a couple of questions though, which if you could answer would be great?

(1) I have seen on eBay for example, Canon EOS lenses called "Mirror Lens"... They state you can have a 600mm focal length. This is obviously great for close up photos. Is this in effect, a "normal" lens that has a higher telephoto?

(2) Is it possible to use a convertor along with a 100-300 lens for example, with my Canon D30?

(3) If you know the answers to the above, which would you say is the best choice to consider?!

Thanks,

Aaron

13 replies: All unread, jump to last
 
User currently offlineCkw From UK - England, joined Aug 2010, 740 posts, RR: 16
Reply 1, posted (11 years 5 months 4 weeks 1 day 9 hours ago) and read 2609 times:

Having owned a Sigma 600 mirror and all manner of convertors, I would suggest that in terms of image quality a top end convertor on a prime lens beats the mirror every time. Good convertor on a zoom - less clear cut - lets
call it even. Budget convertor on any lens - the mirror is the better bet.

But, in my experience, the mirror is a pig to use - depth of field is minimal, requiring absolutely precise focusing ... but on the D30, forget AF and you'll be working with a dark viewfinder.

Cheers,

Colin



Colin K. Work, Pixstel
User currently offlineWork4bmi From , joined Dec 1969, posts, RR:
Reply 2, posted (11 years 5 months 4 weeks 1 day 8 hours ago) and read 2545 times:

Would you say forget about the Mirror then, as I do own a D30?

User currently offlineJwenting From Netherlands, joined Apr 2001, 10213 posts, RR: 18
Reply 3, posted (11 years 5 months 4 weeks 1 day 1 hour ago) and read 2464 times:

Forget the mirror.
Get a 300 f/2.8 and a 2x converter from the same brand.



I wish I were flying
User currently offlineGlenn From United Kingdom, joined Oct 2005, 0 posts, RR: 0
Reply 4, posted (11 years 5 months 4 weeks 23 hours ago) and read 2454 times:

Absolutely no way ever buy a mirror lense



User currently offlineJwenting From Netherlands, joined Apr 2001, 10213 posts, RR: 18
Reply 5, posted (11 years 5 months 4 weeks 20 hours ago) and read 2424 times:

Unless you need something that's small and lightweight and those considerations are so important that you can live with poor optics and very limited functionality (fixed aperture, sometimes no focussing).


I wish I were flying
User currently offlineCkw From UK - England, joined Aug 2010, 740 posts, RR: 16
Reply 6, posted (11 years 5 months 4 weeks 20 hours ago) and read 2432 times:

But a mirror will produce better results than a cheapo convertor.

Cheers.

Colin



Colin K. Work, Pixstel
User currently offlinePRM From Burkina Faso, joined Apr 2002, 351 posts, RR: 0
Reply 7, posted (11 years 5 months 4 weeks 14 hours ago) and read 2394 times:

I've used a 500mm mirror on a Minolta Slr, and they are limited, but would say you can get some ok results out of them. Problem is they are fixed aperture (normally f8 so you need go light for moving subjects) and they produce a bright circular halo in the centre of the resulting image, getting darker towards the edges.

I've shot a few here on ANet using this combination (consumer grade print film), and you can judge the results and difficiencies for yourself. If you have the extra money, go for a fixed prime + convertor.


View Large View Medium
Click here for bigger photo!

Photo © Paul Morley
View Large View Medium
Click here for bigger photo!

Photo © Paul Morley




View Large View Medium
Click here for bigger photo!

Photo © Paul Morley
View Large View Medium
Click here for bigger photo!

Photo © Paul Morley




View Large View Medium
Click here for bigger photo!

Photo © Paul Morley



Cheers
Paul


User currently offlineGlenn From United Kingdom, joined Oct 2005, 0 posts, RR: 0
Reply 8, posted (11 years 5 months 4 weeks 13 hours ago) and read 2393 times:

Colin never ever ever buy a cheap teleconverter  Smile/happy/getting dizzy

User currently offlineWork4bmi From , joined Dec 1969, posts, RR:
Reply 9, posted (11 years 5 months 4 weeks 12 hours ago) and read 2387 times:

Great comments guys. My only concern is that the D30 does not accept convertors? Is this true?  Confused

Thanks,

Aaron


User currently offlineCkw From UK - England, joined Aug 2010, 740 posts, RR: 16
Reply 10, posted (11 years 5 months 4 weeks 12 hours ago) and read 2371 times:

D30 does accept convertors - are you sure you're thinking of what we're talking about - ie. a lens module that fits between your lens and the camera - NOT the screw in type that goes on the front of the lens.

What you might have heard is that the D30 won't AF with a convertor. This is true if the combined aperture of lens & convertor is numerically greater than f5.6 - eg. f8. Unfortunately with your 100-300 this will be the case. The camera WILL function perfectly, but you will have to manual focus.

Glenn - I've bought many cheap convertors in the past, that's why I know they're crap!

Cheers,

Colin




Colin K. Work, Pixstel
User currently offlineHisham From Lebanon, joined Aug 1999, 701 posts, RR: 11
Reply 11, posted (11 years 5 months 4 weeks 12 hours ago) and read 2381 times:

The 100-300 is not compatible with canon converters. You need a third-party one which may not be as good.

Hisham.


User currently offlineWork4bmi From , joined Dec 1969, posts, RR:
Reply 12, posted (11 years 5 months 4 weeks 8 hours ago) and read 2345 times:

So, the convertor does work with a D30 but only in MANUAL focus with a 100-300?

If this is the case, am still up for buying one. I would much appreciate any sites etc... where I can buy one, or at least compare the prices?

What would you say is a good price? I dont want to buy something that maybe to the "novice" is be a rip off?!

Thanks,

Aaron


User currently offlineJwenting From Netherlands, joined Apr 2001, 10213 posts, RR: 18
Reply 13, posted (11 years 5 months 4 weeks 3 hours ago) and read 2346 times:

http://www.technikdirekt.de is an excellent online store located in Germany.
Good choice, good prices, excellent service.
Look for the more expensive Kenko models, they're supposed to be (I don't have one, but people that do recommend them which is good enough for me) very good.

I've done business with them several times, very professional and fast response. If items are in stock, they're usually shipped within a few days.
They know English, though the site is sometimes a mix of English and German (especially item names).

[Edited 2003-03-30 07:53:11]


I wish I were flying
Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
Advise Of Buying A New Lens (or 2) posted Tue May 3 2005 00:22:26 by Morvious
You Pick: A 300D And Lens Or A Trip To Australia.. posted Sun Jan 16 2005 03:03:30 by MartinairYYZ
Sigma 8/600 Mirror Lens? posted Sun Apr 4 2004 17:39:17 by Patroni
What Improves Quality More? New Lens Or Camera? posted Mon Apr 8 2002 08:19:14 by LGW
Centon 500mm Mirror Lens posted Sat Feb 10 2001 14:25:44 by Granite
Long Lens Or Fast Lens? posted Sat Jan 6 2001 02:09:08 by Usairways@clt
300mm Lens Or A 2x Converter? - Help! - Asap! posted Mon Dec 25 2000 19:31:04 by LGW
Lens Advice: Is Or Not? posted Thu May 11 2006 01:41:50 by AC773
New Camera Or New Lens? posted Wed Apr 5 2006 07:07:35 by Seachaz
Changing My Canon L Lens...any Thoughts Or Help? posted Fri Jan 20 2006 18:53:49 by Danpio