58mm High Definition Pro 2x Telephoto Lens

Update 2018 - I found this when looking through some boxes of stuff and it happened to fit on my Nikon 55-300mm lense for the DSLR that replaced the Canon SuperShot S2 IS when I decided to follow my own advice below. And guess what, this thing is still horrible! I had to search my Amazon purchases to see if there was a bad review of this and sure enough if I didn't find my own review of this. I can't see how anyone would buy this after my review but, people did. I'm going to change the title of this review to make it more clear DO NOT BUY THIS JUNK!--------------Original Title: Welcome to the world of cheap optics -- now RUN AWAY!If you want a good 2x 'telephoto' or 'teleconverter', you're better off sticking with whatever your manufacturer recommends. It turns out that regardless of what picture they show or what name 'brand' (if you can call it that) in this ultra budget category of digital camera add-ons, you will probably get something slightly different and that's just pretty much an industry standard. Even the seller doesn't always know what they have in the package -- that's how bad it is.Most of these subpar teleconverters are 2 element devices that will give you wonderfully cloudy, blurred or otherwise disappointing pictures. Quite often, you can't use one of these with your lens at its furthest magnification which means that whatever multiplication of your focal length you were hoping to get is going to be substantially less (as well as light intensity, resolution and autofocus.)If you spend $15 on this lens and then spend a dozen hours trying to figure out how to live within the limitations and get decent pictures from it, you may realize that you were better off spending the $75 to get the OEM one to begin with (unless you feel that your time is not worth at least $5-6/hr.) This is definitely a case of 'you get what you pay for', as long as you want cheap pictures where you are going to get a marginal improvement on your zoom and you don't mind cropping out 2/3 of your image.If you aren't getting enough 'zoom' out of your existing compact DSLR-like camera, AND you want to get decent pictures, you really only have two choices: buy a new one with a bigger zoom/megapixel count, or buy a 'real' DSLR that uses standard lenses. If you are a casual photographer, I'd suggest the former. If you want to make the investment and get something you'll be happy with for years, go with the latter.

Well, the title kind'of explains it... I purchased this just before New Years and it has finally arrived. I took it out of the case and well let's just start with design. It sucks! Why? It's not made for D-SLR camera's but maybe more for what I call kids camera's or better known as point and shoots. The design is to long, topping out at about 2" long... No, at this point just looking at it, I knew that the chance of a ghostly image around the photographs was "HIGH". The lens claims to be Pro but this is not even close. Taking a closer look with a glass scope, it's very low quality glass with thousands of tiny bubbles where it was not heated to expectation.I went a head and gave it a go, first on my Sigma EF 70-210mm 1:3.5-4.5 I took a few photographs at 70mm and sure enough, nothing good came out of it. Then I expanded my lens to 210mm and the AF would not work at all. I tried manually focusing and the quality was so diminished that I didn't even waste my time. I then took it off.I then put it on my Sigma EF 18-55mm 1:2.0L Lens and started at 18mm. Not surprised at this moment that it created a very thick black circle around the object. I didn't waste my time. I moved up to 24mm and it was still there but very thin. Again, no time wasted. I moved up to 55mm which would actually be 55x2 =110mm - (8%) > 1/5 = 98.15mm and to my surprise it auto focused and was crisp. So there you have it... If you want to have a cheap way of converting from 55mm to 98.15mm in an instant the go for this. I'm send it back.TIP: IF YOU LISTEN TO THE OTHER REVIEWS, YOU WON'T WASTE YOUR TIME...

Product works as described. However, doubling of focal length makes it almost impossible for camera or camcorder to auto-focus. That makes it not very useful for sporting events - which was the intended use.

I didn't expect much given the price but, overall I am more than satisfied with this telephoto lens converter.I am not a seasoned photographer. However, using this lens, I have produced for the most part sharp, well focused images and ... given the long distance it was like I was there.Twice, when using this lens, I did produce blurred results and found that the errors were primarily due to two factors ... both user errors:(1) I didn't use a tripod,did not support the camera well and I was taking the images in a "bright sunlite distance to a subject in dark shade situation" and ... due to camera shake I had fuzzy results along with other problems.and/or(2) I forgot to set the Powershot G10 to the TC-DC58D menu setting (i.e.,the setting for the Canon TC-DC58D Tele Converter Lens). Although, the TC-DC58D lens power is less for the Canon product making this setting seems to improve my Digital Optics Pro 2x Telephoto Lens Converter focus.... (2.1) Further, I am not using the plastic Canon LA-DC58K Conversion Lens Adapter ... instead I am using a metal one for about 50% of the price ... Opteka 58mm Metal (Two-Part) Lens Adapter for Canon Powershot G10 Digital Camera.Last, for less than $50 I doubled my camera's effective focal length range:(1)Wide Angle = (2 x 6.1mm) = 12.2 mm(2)Telephoto = (2 x 30.5mm) =61.0 mmA welcome enhancement that increased the utility of my camera. Also, it has improved indoor portraits.So,based on Canon pricing for near equivalents, I have paid less than one half the price ... for good results. I would do this again. Tastes vary ... I am sure for a higher price you may be able to do better ... but, based on the price and my expectations this product has earned its 5 stars.LINKS: Opteka 58mm Metal (Two-Part) Lens Adapter for Canon Powershot G10 Digital Camera Digital Optics Pro 2x Telephoto Lens Converter - 58mm threading (Black) Canon TC-DC58D Tele Converter Lens for Canon G10 Digital Camera (requires LA-DC58K Lens Adapter) Canon LA-DC58K Conversion Lens Adapter for Canon G10 Digital Cameras Canon PowerShot G11 10MP Digital Camera with 5x Wide Angle Optical Stabilized Zoom and 2.8-inch articulating LCD Canon Powershot G10 14.7MP Digital Camera with 5x Wide Angle Optical Image Stabilized Zoom