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Telephoto Lens For My Canon Eos

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I'm thinking of buying a telephoto lens but not sure whether to get one of these:-

 

KELDA 500MM F/6. 3 T2 MIRROR REFLEX LENS http://www. ebay. co. uk/itm/KELDA-500MM-F-6-3-T2-MIRROR-REFLEX-LENS-INC-CANON-T2-MOUNT-/191269392875?pt=UK_Lenses_Filters_Lenses&hash=item2c888b51eb

 

 

or one of these :-

Samyang 500mm incl 2x converter http://www. ebay. co. uk/itm/1000mm-lens-for-Canon-400D-350D-300D-1D-5DmkIII-Samyang-500mm-incl-2x-converter-/231437266230?pt=UK_Lenses_Filters_Lenses&hash=item35e2bc6d36

 

Can any of you photo experts give me some guidance :)

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I don't know alot about these particular items. But I am a believer in you get what you pay for and those seem very cheap.

 

Both lenses are very slow (F6. 3 and F8) not too much of a prob if you're doing longer exposures on tripods.

 

I doubt the quality would be fantasic and a high potential for optical defects.

 

But if you do go for one then I would love to hear your opinion of it as I would like a longer lens than my 300mm Canon USM without spending £5000

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It's about what suits you as much as anything.

 

I have one of these http://www. dpreview. com/products/sigma/lenses/sigma_70-300_4-5p6_dg

 

and an x2 converter that I use on a Canon 600D.

 

In terms of apparent power with the 1. 6 crop factor of the camera it goes up to 480, with the x2 960, though at that magnification it can be a bit dark and needs some exposure compensation.

 

Though Tamron are offering a 16-300 which is tempting

 

Taken at the 300mm setting

 

1483361_10202121712778434_1427424761_n.j

Edited by Ich

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Are 2x converters good? any recommendations on type to go for? (never used one)

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I've already got a Tamron 70 - 300mm but looking at a 2x converter they seem to be a hefty price for a little more I could get one of the above lenses but not sure which one and how good / bad is the quality of the image.

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I've had some decent photos with the x2, I'll try and find some for you, or take some tomorrow!

 

An unusual one, but this is an Air France Airbus A380 on a Paris - San Fransisco flight,

Aircraft at 36,000 ft and 60km range from the camera.

 

(one of those daft shots as a friend was on the flight)

 

300 mm with x2 so 960mm with crop factor

 

10246492_10202268858856994_2584573358255

Edited by Ich

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Ah here, uncropped

300mm with x2 overflying at 39000 ft BA Boeing 747313768_4729223302640_156523038_n.jpg?oh=

Edited by Ich

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Ah here, uncropped

300mm with x2 overflying at 39000 ft BA Boeing 747313768_4729223302640_156523038_n.jpg?oh=

Looks like you have hairs on the lens though or at least I hope that's what it is ;)

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The Kenko teleconveryers are quite good. That said, all TCs have a habit of magnifying imperfections in the lens they are used with. ..imperfections that may not be obvious when using the lens sans tc.

 

It's therefore generally recognised that zoom lenses are not the best partners for them!

 

It's also true that the 1. 4x versions are better than the 2x versions. ..its a matter of not being greedy.

 

Quite often, cropping a well taken image with the basic lens will match one taken with a TC attached.

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That was from my previous 1000D which had that mark on the camera somewhere.

 

The other good bit of the Sigma is the Macro setting

 

558384_3737771756971_1140122184_n.jpg?oh

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If we're swapping photo's I've been playing with a glass ball recently

 

post-43771-0-41602400-1421441865_thumb.jpg

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I use a 18-270mm Tamron lens on my Nikon D3200. I am really pleased with it, covers a great focal range, and wasnt bad value for money either :D

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Right,update, received my new Kelda 500mm f6 telephoto mirror lens by post this morning.

I have taken similar pictures of a bird box at the bottom of the garden through an upstairs double glazed window of my house using a Tamron 70-300mm at full magnification and with the Kelda.

I must admit that I am quite please with the results but the focus is manual.

post-43771-0-43634900-1421770731_thumb.jpg

post-43771-0-83670200-1421770748_thumb.jpg

Edited by springtime
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Nice!

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Thats impressive. I have often thought I would like a 500 lens but couldn't afford one and couldn't carry it! Please post some more photos and your experiences as I might be tempted with this one.

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We used to use Cannon Pro lenses on a range of cctv cameras at my previous employer. when using a x2 the picture quality noticably degraded.

as others have said you get what you pay for. find an outlet that will let you try before you buy. we always used our local London Cam' exchange.

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My new Tamron 16-300 turned up today

Some initial test shots

 

16mm (a wee bit of barrel distortion)

11071444_10204458558158108_3444981352765

 

300mm

10172838_10204458558478116_4299404557327

 

Macro

11063504_10204458559358138_7932376143371

 

Then with an x2 convertor

 

 

1959518_10204458560038155_19852850325946

Edited by Ich

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Treated myself to a Canon b10 - 18 last week.

Looks good so far

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I'm thinking of buying a telephoto lens . . .

 

Can any of you photo experts give me some guidance :)

Hi,

I can't comment on either of the lenses you linked to, as they're more for bird watching etc. , using a tripod, but I can say that the 75-300 zoom that was supplied with my Canon EOS 550D works perfectly well for me under most light conditions, and can usually be hand held with reasonable results.

 

Here's a couple of shots of Red Kites over our house using it on full zoom :-

Red Kite 100_1753.jpg Red Kite 100_1754.jpg

 

Red Kite 100_1755.jpg Red Kite 100_1756.jpg

 

. ..and here's a snap of our garden using the standard 18-55mm zoom lens on the same camera.

Garden Img_3957.jpg

 

Gordon

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