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Inexpensive but compact all-purpose lens for NEX?
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PostPosted: Mon Oct 20, 2014 8:11 pm    Post subject: Reply with quote
Companon 28/4 sample:

http://i.imgur.com/6hft6b8.jpg

No post processing at all, just downsized. This lens is amasingly sharp at center at F4 even.

[CuriousOne: Your pic is too big for this forum (max. 1024 px wide) and I've changed it to a link. If you want to post large images
without resizing, either post in the Oversize Gallery or use the Picture Upload button which will resize for you. Thanks, peterqd]


PostPosted: Mon Oct 20, 2014 8:23 pm    Post subject: Reply with quote
The Sigma 30mm seems to be a very good idea


PostPosted: Mon Oct 20, 2014 8:26 pm    Post subject: Reply with quote
Yes, except the "low" price it has.


PostPosted: Mon Oct 20, 2014 11:28 pm    Post subject: Reply with quote
I agree about the kit lens, if you dont have one a new one will be expensive. I use an adapted lens from a Konica rangefinder that was broken. Its incredibly sharp and is no bigger than many of the samples shown here, another good lens to convert would be the Contax Minotar/Minoxar lens from a CL or similar. Full focusing and aperture control and very easy to adapt.. Its 35mm so a little long for MFT but very usable on the NEX. I use a reversing ring for my conversions, its the thinnest adapter you can get. I cut a circle of MDF and fixed the lens to it and sanded the back of the MDF down until I got infinity focus. Simple really and needing no specialist tools other than a screwdriver, scissors, hole saw and a file. Plus glue and a bit of sandpaper.





Some pics taken last year, the diamond aperture has a distinctive bokeh about f4 to see the shape of the aperture





edit: It actually sticks out as far as the Sony SEL16-50 kit lens.


PostPosted: Tue Oct 21, 2014 1:52 am    Post subject: Reply with quote
Componon 28/4 is nice enlarger lens. I have Rodenstock Rodagon 28/4, it's my fave lens to be travel kit. for compactness, and sharp.
SAMPLES HERE


PostPosted: Tue Oct 21, 2014 12:50 pm    Post subject: Reply with quote
Took additional photos with that 28/4 lens.

It has quite strange behavior: It is super sharp in center at F4, and not so good at corners, but when stopped down, instead of corners improving, center gets worse, so at F8, whole image is equally bad.


PostPosted: Tue Oct 21, 2014 3:52 pm    Post subject: Reply with quote
Of course the Minox Minotar/Minoxar (has nothing to do with Contax!) is the lens to go with. Find a broken Minox 35 (there are lots of them, most of them have problems with the electric contacts), take off the lens, glue the shutter wide open, remove all non-necessary parts and adapt it on a C-mount adapter. You won't need machining skills, and you'll be surprised by the results.


PostPosted: Tue Oct 21, 2014 3:57 pm    Post subject: Reply with quote
Get a broken Contax T2 and strip the Sonnar T* 2.8/38.


PostPosted: Tue Oct 21, 2014 3:59 pm    Post subject: Reply with quote
I had adapted a Minotar to Leica M so that I can use it on both my mirrorless cams ( Ricoh GXR M and NEX5n )
I was really taken aback by the strong contrast loss and easy flare when used against light. Later learned that earlier Minox cameras like the 'EL' I had used as donor cam had used single coated, later models multi coated lenses. So anyone who wants to adapt this lens I'd advice to get a late model


PostPosted: Tue Oct 21, 2014 6:06 pm    Post subject: Reply with quote
I was really taken aback by the strong contrast loss and easy flare when used against light.

Well, you can't have it all, can you? Shooting against light is tricky with almost any lens, only top league players are satisfactory in that respect, I'm afraid... In the meantime, enhancing contrast is easy in PP, and flare can be used artistically Smile


PostPosted: Tue Oct 21, 2014 10:55 pm    Post subject: Reply with quote
My Minotar shots were a little flat, auto contrast sorted that out nicely as you can see. And its a remarkably sharp lens. The great thing with this lens is its so easy to adapt as the aperture is separate from the shutter, many arent.

I bought a lens hood for it - what a waste of time. A pathetic afterthought that fits but comes off every time you focus.


PostPosted: Wed Oct 22, 2014 5:43 am    Post subject: Reply with quote
Joke about T2 was especially nice, considering cameras start $250 average on ebay Very Happy


PostPosted: Wed Oct 22, 2014 7:26 am    Post subject: Reply with quote
CuriousOne wrote:
Joke about T2 was especially nice, considering cameras start $250 average on ebay Very Happy

It is a joke only if you have not digest my suggestion and do some homework.
Click here to see on Ebay

P.S. I see another similar boken camera sold in the US for ~$50 this year.


PostPosted: Wed Oct 22, 2014 11:12 am    Post subject: Reply with quote
Sure, auctions can show wonders, but when you need something right now, you have to stick to "buy it now".


PostPosted: Wed Oct 22, 2014 12:14 pm    Post subject: Reply with quote
Sure. Inexpensive things does not show up if you are in a hurry.


PostPosted: Wed Oct 22, 2014 12:46 pm    Post subject: Reply with quote
You might think it's as deep as the 16-50 standard zoom, but actually, it's 5 mm less deep Smile And its volume is way less!


PostPosted: Wed Oct 22, 2014 12:51 pm    Post subject: Reply with quote

Ah, there it is. Forgot how to upload a picture.


PostPosted: Wed Oct 22, 2014 1:25 pm    Post subject: Schneider Kreuznach Reply with quote
An exotic but not unreasonable suggestion. The Xenons were made for the ROBOT automatic SLR cameras. Like any S-K lens I have ever sen they are the top in quality, both in construction and in optics. They are old style chromed brass construction. These lenses use an M26 screw mount that Kipon sells an NEX adapter for.

The 38mm 1:2.8 lens and mount together extend 1-5/16 in from the NEX mount. This is an earlier single coated lens. My copy cost $169.00 on Ebay.

The 40mm 1:1.9 lens and mount together extend 1-5/8 in from the NEX mount. This is a multi-coated lens. My copy cost $161.00 including shipping on Ebay.

Both are larger than an Industar 69 on an M39 mount, still the smallest NEX combo I have found, but I wouldn't wish the Industar lens on anyone.

Last edited by newst on Wed Oct 22, 2014 1:34 pm; edited 1 time in total


PostPosted: Wed Oct 22, 2014 1:33 pm    Post subject: Re: Schneider Kreuznach Reply with quote
newst wrote:
An exotic but not unreasonable suggestion. The Xenons were made for the ROBOT automatic SLR cameras. Like any S-K lens I have ever sen they are the top in quality, both in construction and in optics. They are old style chromed brass construction. These lenses use an M26 screw mount that Kipon sells an NEX adapter for.

1. The 38mm 1:2.8 lens and mount together extend 1-5/16 in from the NEX mount. This is an earlier single coated lens. My copy cost $169.00 on Ebay. Here it is mounted on an NEX-6.



2. The 40mm 1:1.9 lens and mount together extend 1-5/8 in from the NEX mount. This is a multi-coated lens. My copy cost $161.00 including shipping on Ebay.



3. Here is a comparison of the 38mm lens and mount with an Industar 69 on an M39 mount. Still the smallest NEX combo I have found but I wouldn't wish the Industar lens on anyone.


Welcome!


PostPosted: Wed Oct 22, 2014 1:39 pm    Post subject: Reply with quote
Calvin. Thank you for the welcome and for re-posting my photographs. I tried several times but couldn't get them to show on my post. Maybe it's just me. Anyway, those two lenses and a 75mm ROBOT Xenon are new acquisitions that have immediately become my 'small' kit.


PostPosted: Wed Oct 22, 2014 4:57 pm    Post subject: Reply with quote
harry tibi wrote:

Ah, there it is. Forgot how to upload a picture.


BEHOLD... THE SINGULARITY!


PostPosted: Wed Oct 22, 2014 7:06 pm    Post subject: Reply with quote
Good that I've checked wiki and found out that Pentax 110 has no aperture control.

P.S. I have CZJ Tessar 50/2.8 M42. A colleague ofered me to exchange it to Leica lens(he does not remembers the name but he said it is 35mm and for M39 mount). He'll bring the lens tomorrow, so let's see.


PostPosted: Wed Oct 22, 2014 7:25 pm    Post subject: Reply with quote
CuriousOne wrote:
Good that I've checked wiki and found out that Pentax 110 has no aperture control.


well, it was also on my post Wink .

I wish also to remember your requirements that led me suggest a I-69 or some disposable camera lens:
CuriousOne wrote:
Inexpensive - I mean bargain ,old school, one that can be found at pawn shop and so on. Less than $50. Preferably, better than $10 Smile For "serious" shooting, I have native lens, so I'm looking for tiny, inexpensive, trashy lens.


PostPosted: Wed Oct 22, 2014 7:55 pm    Post subject: Reply with quote
CuriousOne wrote:
P.S. I have CZJ Tessar 50/2.8 M42. A colleague offered me to exchange it to Leica lens(he does not remembers the name but he said it is 35mm and for M39 mount).

If it's an original Leica, you definitely got the better end of that deal...


PostPosted: Wed Oct 22, 2014 7:59 pm    Post subject: Reply with quote
I 69 and I 22 already got for almost nothing and are on their way. Also Got I50Y - enlarge lens, and despite ugly shape, it performs quite good.
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