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Forum: Vintage Cameras and Equipment 09-17-2022, 02:12 PM  
Canon P shutter repair?
Posted By ismaelg
Replies: 1
Views: 113
Hello,

I go to Mike at Phototronic.biz for servicing my non-Pentax cameras.

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 09-16-2022, 05:05 PM  
127 Film Cameras
Posted By ismaelg
Replies: 7
Views: 230
Hi Tony,

No. I sent to The Darkroom in California for development. But found out their scans were not as good. My own scans were better as I had the time to tinker with it but handling the odd size film was a challenge as my ancient scanner only has 35mm and 120 trays.

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 09-16-2022, 01:04 PM  
127 Film Cameras
Posted By ismaelg
Replies: 7
Views: 230
Hello,

Nice Exakta!

I would love to see the results.

I shot 127 ReraPan 100 earlier this year.
Two rolls left, way to many 127 camera candidates fighting for them. :)

Sample pictures with 2 cameras: One from 1928 and one from 1960 - PentaxForums.com

Thanks,
Ismael
Forum: Welcomes and Introductions 09-12-2022, 03:39 PM  
New member from Puerto Rico - Angel Ramos
Posted By ismaelg
Replies: 8
Views: 216
Welcome! I'm also in Arecibo!
Sending you a private message.

Thanks,
Ismael
Forum: Film SLRs and Compact Film Cameras 09-10-2022, 01:05 PM  
Gear P0rn - post it if you got it.
Posted By ismaelg
Replies: 8,591
Views: 1,117,723
Classic cameras taking pictures of classic cars...
My kind of heaven!

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 09-10-2022, 01:02 PM  
Zeiss Icon Contina 1A.....$20 dollar camera built in 1954 worth it?
Posted By ismaelg
Replies: 6
Views: 290
BEAUTIFUL results from a BEAUTIFUL camera!
Love it!

Thanks,
Ismael
Forum: Troubleshooting and Beginner Help 09-08-2022, 12:16 PM  
Pentar k chrome
Posted By ismaelg
Replies: 10
Views: 552
Hello,

Pictures will be helpful in determining it. If it has the auto diaphragm pin pushing bar and a low speed dial up front it is a K. If it has the 2 posts for it but lacking the bar, and the shutter dial speeds are 500, 250, 125, 60, 30, 15, 8, 4, 2 and 1 it is most likely an S model. The original AP had no provision for the pushbar and the speeds were 500, 200, 100, 50, 25, 10, 5, 2 and 1.
From the S2 (H2) forward, all speeds were in a single dial.

Thanks,
Ismael
Forum: Troubleshooting and Beginner Help 09-07-2022, 10:33 AM  
Pentar k chrome
Posted By ismaelg
Replies: 10
Views: 552
Hello,

First of all, welcome! That is indeed a rare and lovely camera. From what I have read over the years, the original Pentax name belonged to a German company: Pentacon. While some sources say Asahi Optical bought the name, it seems that was not exactly the case, or at least not straightforward. After World War II, it seems one of the international sanctions to Germany was the opening and release of patents and copyrights. So the name "Pentax" was used by the Asahi Optical Company in 1957. However, it seems South Africa and possibly Finland (maybe other countries but I haven't found), still recognized the pre-war copyrights. So the Asahi Optical Company labeled some of their products as Pentar, Penta or Asahiflex for these markets. It seems this apply to S, K and S2(H2) models.
I can't confirm this to be 100% accurate. But that's what I have gathered over the years reading about this topic.

**EDIT** I have been researching a bit more about this and it seems it was not a case of sanctions, but more of trademarks dispute. After the war, Zeiss Ikon was split into 2 companies: One in East Germany and the other in West Germany. They had trademark and copyright disputes. The name "Pentax" was retained by the West German company and subsequently sold or negotiated to the Asahi Optical Company. But the East German company, which eventually became part of Pentacon, kept using the name. There is a thread elsewhere in this forum about an early 1960's cine projector named Pentax, but with the Pentacon logo and no relationship to Asahi Optical Company. So they ignored the ruling in favor of the West German company. How or why South Africa (and possibly others) recognized it as still owned by Pentacon is a whole other story, but it was enough to make AOC use a different name for that market.
Convoluted and interesting!


Thanks,
Ismael
Forum: Vintage Cameras and Equipment 09-07-2022, 07:53 AM  
Mamiya 35mm repair shop in US?
Posted By ismaelg
Replies: 5
Views: 192
You can also try Mike at Phototronic in Kansas
Camera Repair - phototronic.biz

Tell him I sent you :)

Thanks,
Ismael
Forum: Film SLRs and Compact Film Cameras 09-04-2022, 08:22 AM  
K2 finder -- is this a problem?
Posted By ismaelg
Replies: 5
Views: 449
Hello,

Hard to tell precisely without physically examining it, but that looks like possibly the start of desilvering of the prism. But it can also be something in the focusing screen or even the mirror (less likely but possible). Whatever it is, it should not affect the resulting image but could be a nuisance in usage. Sometimes these things could be less noticeable with a lens attached but of course you have no way of trying it to decide how much it bothers if at all. I'd keep searching unless it is a great deal compared to others.

Thanks,
Ismael
Forum: Film SLRs and Compact Film Cameras 08-28-2022, 06:38 PM  
Refurbishing Pentax KM part 1 - cleaning
Posted By ismaelg
Replies: 10
Views: 653
Hello,

On the mirror: Can't tell without seeing it, but sometimes mirrors look dirty but are actually desilvered because of previous cleaning attempts. If a gentle cotton swab with some distilled water doesn't help, chances are it could be clean, just desilvered. It can lead to a vicious circle. You get more aggressive and desilver it more, making it look worst and then try to clean more making it worse.

On the focusing screen, again, can't really tell without seeing it, but chances are you are looking at debris on the top side of the screen. You would need to remove the prism to clean the top of the screen and clean the prism as well in the same go. Deteriorated foam and seals from the prism area will find a way to the focusing screen. Trying to wet clean the focusing screen should be avoided unless it is the very last option.

Just my 2 cents.

Thanks,
Ismael
Forum: General Photography 08-28-2022, 06:25 PM  
What is this ?
Posted By ismaelg
Replies: 5
Views: 950
Hello,

Is the pin fixed? Could that be related to the Exakta mount? Looks like a front element of a lens. It seems it screws into something else.

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 08-27-2022, 09:47 AM  
How to clean chrome-plated brass?
Posted By ismaelg
Replies: 8
Views: 301
That was meant to be a joke.... :)

The non-acetone nail polish is very similar to the 99% IPA in my experience. Either one should do the trick and rarely you would need to go further.

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 08-27-2022, 07:43 AM  
How to clean chrome-plated brass?
Posted By ismaelg
Replies: 8
Views: 301
Hello,

Like in a hot pepper eating competition, start mild and work your way up the hotness. :lol:

1- Start with simple distilled water and a cotton swab. You'll be surprised how effective that can be.

2- If needed, then move up to non-acetone nail polish remover in a cotton swab. Just enough without flooding it. *EDIT* As mentioned below, you can also use 99% IPA (Isopropyl Alcohol)

3- Next step, BRASSO metal polish or similar (Blue Magic, Mothers, etc.). I've had good experience with BRASSO but again, a small dab in a cotton swab and work a small area.


Word of caution: chrome plated brass can vary from nuclear resistant tough to barely adequate thin. You need to always be on the lookout for brassing (removing the plating and showing the base metal).
This was severely pitted and corroded.



4- If it declares war, you can step up to heavier guns: Abrasive cleaners.



5- And if it is a matter of mutual annihilation apocalyptical war then:


But the first 2 or 3 would do :lol:

Hope this helps.
This is just my experience, but I'm sure there are other suggestions as well.

Thanks,
Ismael
Forum: Post Your Photos! 08-25-2022, 04:33 PM  
Machinery Star Wars B Wing Starfighter scale model
Posted By ismaelg
Replies: 5
Views: 195
Hello,

As some of you already know, I build scale models.
I am a big Star Wars fan ever since I saw the first movie in 1978 as a kid. It is funny as I don't like sci-fi much. I don't even like movies. Haven't been to a movie theater in years, since the last Star Wars Episode.
As an engineer, 2 of the things I like the most are vehicles and droids. However, for some reason I haven't build that many Star Wars models. Only 2 in all these years. A recent trip to the Star Wars Disney park rekindled my life long interest.

Here is the end result of a recent adventure: Bear with me for more details below.

B-Wing Starfighter This "Blockade Buster" packs a heavy punch with 3 cannons, a Heavy cannon, Precision Targeting Lasers, 4 blasters and torpedo launchers. The cockpit rotates gyroscopically to keep the orientation regardless of angle of attack.












Took it out for a spin in my very own galaxy





Pew! Pew! Pew! P-P-P-P-Pew! KABOOM! Sorry, couldn't resist.
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and the spolier pictures.



Hand painting this guy was a lot of fun...


So, where did it come from? I found this old broken model toy on eBay for $5. Had to rescue it!


In this progress thread you will find all the details including dozens of fabricated parts and all the work done.
https://race-car-models.proboards.com/thread/2947/finished-star-wars-wing-starfighter

"May the FORCE be with you!"

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 08-23-2022, 05:13 AM  
Kodak No 2 Bulls Eye camera of 1896! Yes, 1896 as in 19th Century
Posted By ismaelg
Replies: 24
Views: 2,660
Hello,

Not yet. I've been very busy with work, life in general and out of town recently. This one is quite special and I don't want to rush it. Some pre-work is still needed. I hope I can get back to it soon.

Thanks,
Ismael
Forum: Troubleshooting and Beginner Help 08-17-2022, 08:32 PM  
K1000 Lever won't budge HELP
Posted By ismaelg
Replies: 2
Views: 276
Hello,

If it is a K1000, and it is jammed without film, chances are the mirror charge lever is out of position. If that's the case follow this video for an easy fix.















You Tube




Thanks,
Ismael
Forum: Vintage Cameras and Equipment 08-09-2022, 07:14 PM  
Rolleiflex 2.8E3 model that I picked up
Posted By ismaelg
Replies: 5
Views: 358
Wow! That's a beauty! And very rare.

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 08-08-2022, 03:24 PM  
Brownie Reflex Synchro: 127 film Pseudo TLR from 1941-1952
Posted By ismaelg
Replies: 13
Views: 410
They are siblings, but not Twins :lol:
Forum: Vintage Cameras and Equipment 08-08-2022, 11:41 AM  
Brownie Reflex Synchro: 127 film Pseudo TLR from 1941-1952
Posted By ismaelg
Replies: 13
Views: 410
Hello,

By Pseudo TLR I mean it is made to look like one but it is not. In the strict definition, a TLR (Twin Lens Reflex) has identical lenses and they are linked mechanically primarily for focusing. In this case, as you mentioned nothing moves. But more than that, the two lenses (viewing and taking) are completely different. It is really just a waist level viewfinder located on top of the taking lens in a way that it resembles a TLR.
Earlier this year I tested a Starflex which is an evolution of this concept and it was surprisingly good!

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 08-07-2022, 05:44 PM  
Brownie Reflex Synchro: 127 film Pseudo TLR from 1941-1952
Posted By ismaelg
Replies: 13
Views: 410
Hello,

Good catch Sam! Sorry I didn't include the usual comparison with the International Standard of Photographic Measurement :)
Here it is. The background already changed as I'm currently working on the dark side of my hobbies...



Thanks,
Ismael
Forum: Film SLRs and Compact Film Cameras 08-07-2022, 04:28 PM  
Replacement Leatherette pictures
Posted By ismaelg
Replies: 92
Views: 9,068
Hello,

Turns out nobody makes replacement leatherette kits for Petri V6. So I had to make my own.



You can check the complete story here:
Mild custom 1965 Petri V6: It's a camera, not a car - PentaxForums.com

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 08-06-2022, 06:00 AM  
Brownie Reflex Synchro: 127 film Pseudo TLR from 1941-1952
Posted By ismaelg
Replies: 13
Views: 410
Hello!

No idea on the focal length. Not listed anywhere in my books or online. Been a consumer camera, I'd guess it may be wide-ish normal? Maybe slightly lower than 50mm equivalent in 35.
The image is square, about 4cm x 4cm. That makes the diagonal about 56mm. Maybe a 50mm? Just speculating.
In my tests the lowest was 1/39 (only once) and up to 1/48, but mostly around 1/43.
No idea on the aperture either but I'd (again) speculate it was set for a sunny 11 or similar and hope for the film latitude to compensate. ASA50 was common. So around 1/50 f11 would be plausible.
But again it is only speculation.

Thanks,
Ismael
Forum: Vintage Cameras and Equipment 08-06-2022, 05:11 AM  
Brownie Reflex Synchro: 127 film Pseudo TLR from 1941-1952
Posted By ismaelg
Replies: 13
Views: 410
Hello,

The TLR (Twin Lens Reflex) camera design dates back to the 19th century. In these, 2 (usually identical) lenses are used: one for framing and one for taking. They are arranged one on top of the other as close as practically possible. In the late 1920s and 1930s the TLR design was becoming very popular, thanks to the Rolleiflex that was a huge success. The popularity of the design made camera manufacturers to leverage the basic layout for less expensive offerings. Pseudo-TLRs became very popular in the amateur/mass market from the 1940s all the way to the late 1960s and beyond. These typically used different lenses for viewing and taking and they were not linked in any way.
One of the earliest models of this pseudo-TLR offerings was the Kodak Brownie Reflex. My quick research makes me believe it was the first Kodak Pseudo-TLR model. Need some more research to confirm. It was launched in 1940 but it was redesigned in late 1941 as the Kodak Brownie Reflex Synchro Model, adding flash synchronization. Been a Brownie, this camera was a lower end model aimed at amateurs/mass market. It was quite successful and was built until 1952 in the USA, and from 1946 to 1960 in the UK.
This camera is very basic. It produces square images in 127 film. The main body is made of Bakelite. Single instantaneous shutter speed, Bulb and no aperture control. The lens is a meniscus design with fixed focusing from about 5 feet to infinity. The viewing lens is quite big in order to produce a bright image in the waist level finder. the first model retailed for $5 and the Synchro retailed for $6.

My specimen:
This Brownie Reflex Synchro model was tucked in a corner of a box of goodies that a friend sent me earlier this year. I could not find any serial numbers or CAMEROSITY codes.
The camera is dirty all around. The shutter is sluggish. But the biggest issue is that it rattles like crazy. Something big is loose inside. Been a simple camera, this should be a quick project.

Before:






During:
There are signs of this camera been tampered with before.


Not surprisingly, the shutter is rather simple but robust. A good clean and it is working properly now.




Here is a surprise: The mirror on the viewing lens is a true silver coated glass mirror. I was expecting a polished piece of steel. I wonder if this is original as there are signs of tampering. There is a broken chip in the inner body, like if someone was trying to get the mirror out the wrong way.


AHA! The rattling came from the viewfinder lens. The metal spring that holds it in place was all bent out of shape. Another sign of this been messed up with. A solid cylinder of aluminum provided the motivation it needed to get back in proper shape.


Everything was cleaned and went together without any fuzz.

After:

Presenting my refreshed Kodak Brownie Reflex Synchro Model




















I measured the shutter and it averaged about 1/43s. While still handholdable, I would use at least a monopod with this camera as the instantaneous shutter speed may be close to the limit of motion blur.

Hope you approve.

Thanks,
Ismael
Forum: Pentax K-01 08-04-2022, 09:16 AM  
Pentax K-01 disassembly
Posted By ismaelg
Replies: 10
Views: 569
Hello,

Bookmarked for reference!
My K-01 "died" as the shutter no longer opens. I suspect it may be the solenoids.
Any idea? Also, any idea what part to get and where to get it from?

Thanks,
Ismael
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